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645 lines
17 KiB
645 lines
17 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* OMAP SSI driver. |
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* |
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* Copyright (C) 2010 Nokia Corporation. All rights reserved. |
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* Copyright (C) 2014 Sebastian Reichel <[email protected]> |
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* |
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* Contact: Carlos Chinea <[email protected]> |
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*/ |
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#include <linux/compiler.h> |
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#include <linux/err.h> |
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#include <linux/ioport.h> |
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#include <linux/io.h> |
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#include <linux/clk.h> |
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#include <linux/device.h> |
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#include <linux/platform_device.h> |
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#include <linux/dma-mapping.h> |
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#include <linux/dmaengine.h> |
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#include <linux/delay.h> |
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#include <linux/seq_file.h> |
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#include <linux/scatterlist.h> |
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#include <linux/interrupt.h> |
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#include <linux/spinlock.h> |
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#include <linux/debugfs.h> |
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#include <linux/pinctrl/consumer.h> |
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#include <linux/pm_runtime.h> |
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#include <linux/of_platform.h> |
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#include <linux/hsi/hsi.h> |
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#include <linux/idr.h> |
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#include "omap_ssi_regs.h" |
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#include "omap_ssi.h" |
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|
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/* For automatically allocated device IDs */ |
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static DEFINE_IDA(platform_omap_ssi_ida); |
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#ifdef CONFIG_DEBUG_FS |
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static int ssi_regs_show(struct seq_file *m, void *p __maybe_unused) |
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{ |
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struct hsi_controller *ssi = m->private; |
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struct omap_ssi_controller *omap_ssi = hsi_controller_drvdata(ssi); |
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void __iomem *sys = omap_ssi->sys; |
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pm_runtime_get_sync(ssi->device.parent); |
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seq_printf(m, "REVISION\t: 0x%08x\n", readl(sys + SSI_REVISION_REG)); |
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seq_printf(m, "SYSCONFIG\t: 0x%08x\n", readl(sys + SSI_SYSCONFIG_REG)); |
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seq_printf(m, "SYSSTATUS\t: 0x%08x\n", readl(sys + SSI_SYSSTATUS_REG)); |
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pm_runtime_put(ssi->device.parent); |
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return 0; |
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} |
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static int ssi_gdd_regs_show(struct seq_file *m, void *p __maybe_unused) |
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{ |
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struct hsi_controller *ssi = m->private; |
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struct omap_ssi_controller *omap_ssi = hsi_controller_drvdata(ssi); |
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void __iomem *gdd = omap_ssi->gdd; |
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void __iomem *sys = omap_ssi->sys; |
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int lch; |
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pm_runtime_get_sync(ssi->device.parent); |
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seq_printf(m, "GDD_MPU_STATUS\t: 0x%08x\n", |
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readl(sys + SSI_GDD_MPU_IRQ_STATUS_REG)); |
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seq_printf(m, "GDD_MPU_ENABLE\t: 0x%08x\n\n", |
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readl(sys + SSI_GDD_MPU_IRQ_ENABLE_REG)); |
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seq_printf(m, "HW_ID\t\t: 0x%08x\n", |
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readl(gdd + SSI_GDD_HW_ID_REG)); |
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seq_printf(m, "PPORT_ID\t: 0x%08x\n", |
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readl(gdd + SSI_GDD_PPORT_ID_REG)); |
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seq_printf(m, "MPORT_ID\t: 0x%08x\n", |
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readl(gdd + SSI_GDD_MPORT_ID_REG)); |
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seq_printf(m, "TEST\t\t: 0x%08x\n", |
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readl(gdd + SSI_GDD_TEST_REG)); |
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seq_printf(m, "GCR\t\t: 0x%08x\n", |
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readl(gdd + SSI_GDD_GCR_REG)); |
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for (lch = 0; lch < SSI_MAX_GDD_LCH; lch++) { |
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seq_printf(m, "\nGDD LCH %d\n=========\n", lch); |
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seq_printf(m, "CSDP\t\t: 0x%04x\n", |
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readw(gdd + SSI_GDD_CSDP_REG(lch))); |
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seq_printf(m, "CCR\t\t: 0x%04x\n", |
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readw(gdd + SSI_GDD_CCR_REG(lch))); |
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seq_printf(m, "CICR\t\t: 0x%04x\n", |
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readw(gdd + SSI_GDD_CICR_REG(lch))); |
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seq_printf(m, "CSR\t\t: 0x%04x\n", |
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readw(gdd + SSI_GDD_CSR_REG(lch))); |
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seq_printf(m, "CSSA\t\t: 0x%08x\n", |
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readl(gdd + SSI_GDD_CSSA_REG(lch))); |
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seq_printf(m, "CDSA\t\t: 0x%08x\n", |
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readl(gdd + SSI_GDD_CDSA_REG(lch))); |
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seq_printf(m, "CEN\t\t: 0x%04x\n", |
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readw(gdd + SSI_GDD_CEN_REG(lch))); |
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seq_printf(m, "CSAC\t\t: 0x%04x\n", |
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readw(gdd + SSI_GDD_CSAC_REG(lch))); |
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seq_printf(m, "CDAC\t\t: 0x%04x\n", |
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readw(gdd + SSI_GDD_CDAC_REG(lch))); |
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seq_printf(m, "CLNK_CTRL\t: 0x%04x\n", |
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readw(gdd + SSI_GDD_CLNK_CTRL_REG(lch))); |
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} |
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pm_runtime_put(ssi->device.parent); |
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return 0; |
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} |
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DEFINE_SHOW_ATTRIBUTE(ssi_regs); |
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DEFINE_SHOW_ATTRIBUTE(ssi_gdd_regs); |
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static int ssi_debug_add_ctrl(struct hsi_controller *ssi) |
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{ |
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struct omap_ssi_controller *omap_ssi = hsi_controller_drvdata(ssi); |
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struct dentry *dir; |
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/* SSI controller */ |
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omap_ssi->dir = debugfs_create_dir(dev_name(&ssi->device), NULL); |
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if (!omap_ssi->dir) |
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return -ENOMEM; |
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debugfs_create_file("regs", S_IRUGO, omap_ssi->dir, ssi, |
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&ssi_regs_fops); |
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/* SSI GDD (DMA) */ |
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dir = debugfs_create_dir("gdd", omap_ssi->dir); |
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if (!dir) |
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goto rback; |
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debugfs_create_file("regs", S_IRUGO, dir, ssi, &ssi_gdd_regs_fops); |
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return 0; |
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rback: |
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debugfs_remove_recursive(omap_ssi->dir); |
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return -ENOMEM; |
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} |
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static void ssi_debug_remove_ctrl(struct hsi_controller *ssi) |
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{ |
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struct omap_ssi_controller *omap_ssi = hsi_controller_drvdata(ssi); |
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debugfs_remove_recursive(omap_ssi->dir); |
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} |
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#endif /* CONFIG_DEBUG_FS */ |
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/* |
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* FIXME: Horrible HACK needed until we remove the useless wakeline test |
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* in the CMT. To be removed !!!! |
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*/ |
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void ssi_waketest(struct hsi_client *cl, unsigned int enable) |
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{ |
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struct hsi_port *port = hsi_get_port(cl); |
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struct omap_ssi_port *omap_port = hsi_port_drvdata(port); |
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struct hsi_controller *ssi = to_hsi_controller(port->device.parent); |
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struct omap_ssi_controller *omap_ssi = hsi_controller_drvdata(ssi); |
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omap_port->wktest = !!enable; |
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if (omap_port->wktest) { |
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pm_runtime_get_sync(ssi->device.parent); |
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writel_relaxed(SSI_WAKE(0), |
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omap_ssi->sys + SSI_SET_WAKE_REG(port->num)); |
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} else { |
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writel_relaxed(SSI_WAKE(0), |
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omap_ssi->sys + SSI_CLEAR_WAKE_REG(port->num)); |
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pm_runtime_put(ssi->device.parent); |
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} |
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} |
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EXPORT_SYMBOL_GPL(ssi_waketest); |
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static void ssi_gdd_complete(struct hsi_controller *ssi, unsigned int lch) |
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{ |
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struct omap_ssi_controller *omap_ssi = hsi_controller_drvdata(ssi); |
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struct hsi_msg *msg = omap_ssi->gdd_trn[lch].msg; |
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struct hsi_port *port = to_hsi_port(msg->cl->device.parent); |
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struct omap_ssi_port *omap_port = hsi_port_drvdata(port); |
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unsigned int dir; |
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u32 csr; |
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u32 val; |
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spin_lock(&omap_ssi->lock); |
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val = readl(omap_ssi->sys + SSI_GDD_MPU_IRQ_ENABLE_REG); |
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val &= ~SSI_GDD_LCH(lch); |
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writel_relaxed(val, omap_ssi->sys + SSI_GDD_MPU_IRQ_ENABLE_REG); |
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if (msg->ttype == HSI_MSG_READ) { |
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dir = DMA_FROM_DEVICE; |
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val = SSI_DATAAVAILABLE(msg->channel); |
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pm_runtime_put(omap_port->pdev); |
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} else { |
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dir = DMA_TO_DEVICE; |
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val = SSI_DATAACCEPT(msg->channel); |
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/* Keep clocks reference for write pio event */ |
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} |
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dma_unmap_sg(&ssi->device, msg->sgt.sgl, msg->sgt.nents, dir); |
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csr = readw(omap_ssi->gdd + SSI_GDD_CSR_REG(lch)); |
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omap_ssi->gdd_trn[lch].msg = NULL; /* release GDD lch */ |
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dev_dbg(&port->device, "DMA completed ch %d ttype %d\n", |
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msg->channel, msg->ttype); |
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spin_unlock(&omap_ssi->lock); |
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if (csr & SSI_CSR_TOUR) { /* Timeout error */ |
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msg->status = HSI_STATUS_ERROR; |
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msg->actual_len = 0; |
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spin_lock(&omap_port->lock); |
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list_del(&msg->link); /* Dequeue msg */ |
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spin_unlock(&omap_port->lock); |
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list_add_tail(&msg->link, &omap_port->errqueue); |
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schedule_delayed_work(&omap_port->errqueue_work, 0); |
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return; |
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} |
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spin_lock(&omap_port->lock); |
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val |= readl(omap_ssi->sys + SSI_MPU_ENABLE_REG(port->num, 0)); |
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writel_relaxed(val, omap_ssi->sys + SSI_MPU_ENABLE_REG(port->num, 0)); |
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spin_unlock(&omap_port->lock); |
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msg->status = HSI_STATUS_COMPLETED; |
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msg->actual_len = sg_dma_len(msg->sgt.sgl); |
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} |
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static void ssi_gdd_tasklet(unsigned long dev) |
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{ |
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struct hsi_controller *ssi = (struct hsi_controller *)dev; |
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struct omap_ssi_controller *omap_ssi = hsi_controller_drvdata(ssi); |
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void __iomem *sys = omap_ssi->sys; |
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unsigned int lch; |
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u32 status_reg; |
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pm_runtime_get(ssi->device.parent); |
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if (!pm_runtime_active(ssi->device.parent)) { |
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dev_warn(ssi->device.parent, "ssi_gdd_tasklet called without runtime PM!\n"); |
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pm_runtime_put(ssi->device.parent); |
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return; |
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} |
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status_reg = readl(sys + SSI_GDD_MPU_IRQ_STATUS_REG); |
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for (lch = 0; lch < SSI_MAX_GDD_LCH; lch++) { |
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if (status_reg & SSI_GDD_LCH(lch)) |
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ssi_gdd_complete(ssi, lch); |
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} |
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writel_relaxed(status_reg, sys + SSI_GDD_MPU_IRQ_STATUS_REG); |
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status_reg = readl(sys + SSI_GDD_MPU_IRQ_STATUS_REG); |
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pm_runtime_put(ssi->device.parent); |
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if (status_reg) |
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tasklet_hi_schedule(&omap_ssi->gdd_tasklet); |
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else |
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enable_irq(omap_ssi->gdd_irq); |
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} |
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static irqreturn_t ssi_gdd_isr(int irq, void *ssi) |
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{ |
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struct omap_ssi_controller *omap_ssi = hsi_controller_drvdata(ssi); |
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tasklet_hi_schedule(&omap_ssi->gdd_tasklet); |
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disable_irq_nosync(irq); |
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return IRQ_HANDLED; |
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} |
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static unsigned long ssi_get_clk_rate(struct hsi_controller *ssi) |
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{ |
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struct omap_ssi_controller *omap_ssi = hsi_controller_drvdata(ssi); |
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unsigned long rate = clk_get_rate(omap_ssi->fck); |
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return rate; |
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} |
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static int ssi_clk_event(struct notifier_block *nb, unsigned long event, |
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void *data) |
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{ |
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struct omap_ssi_controller *omap_ssi = container_of(nb, |
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struct omap_ssi_controller, fck_nb); |
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struct hsi_controller *ssi = to_hsi_controller(omap_ssi->dev); |
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struct clk_notifier_data *clk_data = data; |
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struct omap_ssi_port *omap_port; |
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int i; |
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switch (event) { |
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case PRE_RATE_CHANGE: |
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dev_dbg(&ssi->device, "pre rate change\n"); |
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for (i = 0; i < ssi->num_ports; i++) { |
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omap_port = omap_ssi->port[i]; |
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if (!omap_port) |
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continue; |
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/* Workaround for SWBREAK + CAwake down race in CMT */ |
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disable_irq(omap_port->wake_irq); |
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/* stop all ssi communication */ |
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pinctrl_pm_select_idle_state(omap_port->pdev); |
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udelay(1); /* wait for racing frames */ |
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} |
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break; |
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case ABORT_RATE_CHANGE: |
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dev_dbg(&ssi->device, "abort rate change\n"); |
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fallthrough; |
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case POST_RATE_CHANGE: |
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dev_dbg(&ssi->device, "post rate change (%lu -> %lu)\n", |
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clk_data->old_rate, clk_data->new_rate); |
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omap_ssi->fck_rate = DIV_ROUND_CLOSEST(clk_data->new_rate, 1000); /* kHz */ |
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for (i = 0; i < ssi->num_ports; i++) { |
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omap_port = omap_ssi->port[i]; |
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if (!omap_port) |
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continue; |
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omap_ssi_port_update_fclk(ssi, omap_port); |
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/* resume ssi communication */ |
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pinctrl_pm_select_default_state(omap_port->pdev); |
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enable_irq(omap_port->wake_irq); |
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} |
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break; |
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default: |
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break; |
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} |
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return NOTIFY_DONE; |
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} |
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static int ssi_get_iomem(struct platform_device *pd, |
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const char *name, void __iomem **pbase, dma_addr_t *phy) |
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{ |
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struct resource *mem; |
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void __iomem *base; |
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struct hsi_controller *ssi = platform_get_drvdata(pd); |
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mem = platform_get_resource_byname(pd, IORESOURCE_MEM, name); |
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base = devm_ioremap_resource(&ssi->device, mem); |
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if (IS_ERR(base)) |
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return PTR_ERR(base); |
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*pbase = base; |
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if (phy) |
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*phy = mem->start; |
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return 0; |
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} |
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static int ssi_add_controller(struct hsi_controller *ssi, |
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struct platform_device *pd) |
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{ |
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struct omap_ssi_controller *omap_ssi; |
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int err; |
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omap_ssi = devm_kzalloc(&ssi->device, sizeof(*omap_ssi), GFP_KERNEL); |
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if (!omap_ssi) |
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return -ENOMEM; |
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err = ida_simple_get(&platform_omap_ssi_ida, 0, 0, GFP_KERNEL); |
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if (err < 0) |
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return err; |
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ssi->id = err; |
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ssi->owner = THIS_MODULE; |
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ssi->device.parent = &pd->dev; |
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dev_set_name(&ssi->device, "ssi%d", ssi->id); |
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hsi_controller_set_drvdata(ssi, omap_ssi); |
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omap_ssi->dev = &ssi->device; |
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err = ssi_get_iomem(pd, "sys", &omap_ssi->sys, NULL); |
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if (err < 0) |
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goto out_err; |
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err = ssi_get_iomem(pd, "gdd", &omap_ssi->gdd, NULL); |
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if (err < 0) |
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goto out_err; |
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err = platform_get_irq_byname(pd, "gdd_mpu"); |
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if (err < 0) |
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goto out_err; |
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omap_ssi->gdd_irq = err; |
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tasklet_init(&omap_ssi->gdd_tasklet, ssi_gdd_tasklet, |
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(unsigned long)ssi); |
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err = devm_request_irq(&ssi->device, omap_ssi->gdd_irq, ssi_gdd_isr, |
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0, "gdd_mpu", ssi); |
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if (err < 0) { |
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dev_err(&ssi->device, "Request GDD IRQ %d failed (%d)", |
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omap_ssi->gdd_irq, err); |
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goto out_err; |
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} |
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omap_ssi->port = devm_kcalloc(&ssi->device, ssi->num_ports, |
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sizeof(*omap_ssi->port), GFP_KERNEL); |
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if (!omap_ssi->port) { |
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err = -ENOMEM; |
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goto out_err; |
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} |
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omap_ssi->fck = devm_clk_get(&ssi->device, "ssi_ssr_fck"); |
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if (IS_ERR(omap_ssi->fck)) { |
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dev_err(&pd->dev, "Could not acquire clock \"ssi_ssr_fck\": %li\n", |
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PTR_ERR(omap_ssi->fck)); |
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err = -ENODEV; |
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goto out_err; |
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} |
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omap_ssi->fck_nb.notifier_call = ssi_clk_event; |
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omap_ssi->fck_nb.priority = INT_MAX; |
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clk_notifier_register(omap_ssi->fck, &omap_ssi->fck_nb); |
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/* TODO: find register, which can be used to detect context loss */ |
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omap_ssi->get_loss = NULL; |
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omap_ssi->max_speed = UINT_MAX; |
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spin_lock_init(&omap_ssi->lock); |
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err = hsi_register_controller(ssi); |
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if (err < 0) |
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goto out_err; |
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return 0; |
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out_err: |
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ida_simple_remove(&platform_omap_ssi_ida, ssi->id); |
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return err; |
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} |
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static int ssi_hw_init(struct hsi_controller *ssi) |
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{ |
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struct omap_ssi_controller *omap_ssi = hsi_controller_drvdata(ssi); |
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int err; |
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err = pm_runtime_resume_and_get(ssi->device.parent); |
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if (err < 0) { |
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dev_err(&ssi->device, "runtime PM failed %d\n", err); |
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return err; |
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} |
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/* Resetting GDD */ |
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writel_relaxed(SSI_SWRESET, omap_ssi->gdd + SSI_GDD_GRST_REG); |
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/* Get FCK rate in kHz */ |
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omap_ssi->fck_rate = DIV_ROUND_CLOSEST(ssi_get_clk_rate(ssi), 1000); |
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dev_dbg(&ssi->device, "SSI fck rate %lu kHz\n", omap_ssi->fck_rate); |
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writel_relaxed(SSI_CLK_AUTOGATING_ON, omap_ssi->sys + SSI_GDD_GCR_REG); |
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omap_ssi->gdd_gcr = SSI_CLK_AUTOGATING_ON; |
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pm_runtime_put_sync(ssi->device.parent); |
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return 0; |
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} |
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static void ssi_remove_controller(struct hsi_controller *ssi) |
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{ |
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struct omap_ssi_controller *omap_ssi = hsi_controller_drvdata(ssi); |
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int id = ssi->id; |
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tasklet_kill(&omap_ssi->gdd_tasklet); |
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hsi_unregister_controller(ssi); |
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clk_notifier_unregister(omap_ssi->fck, &omap_ssi->fck_nb); |
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ida_simple_remove(&platform_omap_ssi_ida, id); |
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} |
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static inline int ssi_of_get_available_ports_count(const struct device_node *np) |
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{ |
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struct device_node *child; |
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int num = 0; |
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for_each_available_child_of_node(np, child) |
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if (of_device_is_compatible(child, "ti,omap3-ssi-port")) |
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num++; |
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return num; |
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} |
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static int ssi_remove_ports(struct device *dev, void *c) |
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{ |
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struct platform_device *pdev = to_platform_device(dev); |
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if (!dev->of_node) |
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return 0; |
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of_node_clear_flag(dev->of_node, OF_POPULATED); |
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of_device_unregister(pdev); |
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return 0; |
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} |
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|
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static int ssi_probe(struct platform_device *pd) |
|
{ |
|
struct platform_device *childpdev; |
|
struct device_node *np = pd->dev.of_node; |
|
struct device_node *child; |
|
struct hsi_controller *ssi; |
|
int err; |
|
int num_ports; |
|
|
|
if (!np) { |
|
dev_err(&pd->dev, "missing device tree data\n"); |
|
return -EINVAL; |
|
} |
|
|
|
num_ports = ssi_of_get_available_ports_count(np); |
|
|
|
ssi = hsi_alloc_controller(num_ports, GFP_KERNEL); |
|
if (!ssi) { |
|
dev_err(&pd->dev, "No memory for controller\n"); |
|
return -ENOMEM; |
|
} |
|
|
|
platform_set_drvdata(pd, ssi); |
|
|
|
err = ssi_add_controller(ssi, pd); |
|
if (err < 0) |
|
goto out1; |
|
|
|
pm_runtime_enable(&pd->dev); |
|
|
|
err = ssi_hw_init(ssi); |
|
if (err < 0) |
|
goto out2; |
|
#ifdef CONFIG_DEBUG_FS |
|
err = ssi_debug_add_ctrl(ssi); |
|
if (err < 0) |
|
goto out2; |
|
#endif |
|
|
|
for_each_available_child_of_node(np, child) { |
|
if (!of_device_is_compatible(child, "ti,omap3-ssi-port")) |
|
continue; |
|
|
|
childpdev = of_platform_device_create(child, NULL, &pd->dev); |
|
if (!childpdev) { |
|
err = -ENODEV; |
|
dev_err(&pd->dev, "failed to create ssi controller port\n"); |
|
goto out3; |
|
} |
|
} |
|
|
|
dev_info(&pd->dev, "ssi controller %d initialized (%d ports)!\n", |
|
ssi->id, num_ports); |
|
return err; |
|
out3: |
|
device_for_each_child(&pd->dev, NULL, ssi_remove_ports); |
|
out2: |
|
ssi_remove_controller(ssi); |
|
out1: |
|
platform_set_drvdata(pd, NULL); |
|
pm_runtime_disable(&pd->dev); |
|
|
|
return err; |
|
} |
|
|
|
static int ssi_remove(struct platform_device *pd) |
|
{ |
|
struct hsi_controller *ssi = platform_get_drvdata(pd); |
|
|
|
/* cleanup of of_platform_populate() call */ |
|
device_for_each_child(&pd->dev, NULL, ssi_remove_ports); |
|
|
|
#ifdef CONFIG_DEBUG_FS |
|
ssi_debug_remove_ctrl(ssi); |
|
#endif |
|
ssi_remove_controller(ssi); |
|
platform_set_drvdata(pd, NULL); |
|
|
|
pm_runtime_disable(&pd->dev); |
|
|
|
return 0; |
|
} |
|
|
|
#ifdef CONFIG_PM |
|
static int omap_ssi_runtime_suspend(struct device *dev) |
|
{ |
|
struct hsi_controller *ssi = dev_get_drvdata(dev); |
|
struct omap_ssi_controller *omap_ssi = hsi_controller_drvdata(ssi); |
|
|
|
dev_dbg(dev, "runtime suspend!\n"); |
|
|
|
if (omap_ssi->get_loss) |
|
omap_ssi->loss_count = |
|
omap_ssi->get_loss(ssi->device.parent); |
|
|
|
return 0; |
|
} |
|
|
|
static int omap_ssi_runtime_resume(struct device *dev) |
|
{ |
|
struct hsi_controller *ssi = dev_get_drvdata(dev); |
|
struct omap_ssi_controller *omap_ssi = hsi_controller_drvdata(ssi); |
|
|
|
dev_dbg(dev, "runtime resume!\n"); |
|
|
|
if ((omap_ssi->get_loss) && (omap_ssi->loss_count == |
|
omap_ssi->get_loss(ssi->device.parent))) |
|
return 0; |
|
|
|
writel_relaxed(omap_ssi->gdd_gcr, omap_ssi->gdd + SSI_GDD_GCR_REG); |
|
|
|
return 0; |
|
} |
|
|
|
static const struct dev_pm_ops omap_ssi_pm_ops = { |
|
SET_RUNTIME_PM_OPS(omap_ssi_runtime_suspend, omap_ssi_runtime_resume, |
|
NULL) |
|
}; |
|
|
|
#define DEV_PM_OPS (&omap_ssi_pm_ops) |
|
#else |
|
#define DEV_PM_OPS NULL |
|
#endif |
|
|
|
#ifdef CONFIG_OF |
|
static const struct of_device_id omap_ssi_of_match[] = { |
|
{ .compatible = "ti,omap3-ssi", }, |
|
{}, |
|
}; |
|
MODULE_DEVICE_TABLE(of, omap_ssi_of_match); |
|
#else |
|
#define omap_ssi_of_match NULL |
|
#endif |
|
|
|
static struct platform_driver ssi_pdriver = { |
|
.probe = ssi_probe, |
|
.remove = ssi_remove, |
|
.driver = { |
|
.name = "omap_ssi", |
|
.pm = DEV_PM_OPS, |
|
.of_match_table = omap_ssi_of_match, |
|
}, |
|
}; |
|
|
|
static int __init ssi_init(void) { |
|
int ret; |
|
|
|
ret = platform_driver_register(&ssi_pdriver); |
|
if (ret) |
|
return ret; |
|
|
|
return platform_driver_register(&ssi_port_pdriver); |
|
} |
|
module_init(ssi_init); |
|
|
|
static void __exit ssi_exit(void) { |
|
platform_driver_unregister(&ssi_port_pdriver); |
|
platform_driver_unregister(&ssi_pdriver); |
|
} |
|
module_exit(ssi_exit); |
|
|
|
MODULE_ALIAS("platform:omap_ssi"); |
|
MODULE_AUTHOR("Carlos Chinea <[email protected]>"); |
|
MODULE_AUTHOR("Sebastian Reichel <[email protected]>"); |
|
MODULE_DESCRIPTION("Synchronous Serial Interface Driver"); |
|
MODULE_LICENSE("GPL v2");
|
|
|