diff options
Diffstat (limited to 'target/linux/s3c24xx/patches-2.6.24/1094-fix-glamo-mci-fake-reset-opcode-in-suspend.patch.patch')
| -rw-r--r-- | target/linux/s3c24xx/patches-2.6.24/1094-fix-glamo-mci-fake-reset-opcode-in-suspend.patch.patch | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/target/linux/s3c24xx/patches-2.6.24/1094-fix-glamo-mci-fake-reset-opcode-in-suspend.patch.patch b/target/linux/s3c24xx/patches-2.6.24/1094-fix-glamo-mci-fake-reset-opcode-in-suspend.patch.patch new file mode 100644 index 0000000000..1bb66686b9 --- /dev/null +++ b/target/linux/s3c24xx/patches-2.6.24/1094-fix-glamo-mci-fake-reset-opcode-in-suspend.patch.patch @@ -0,0 +1,141 @@ +From a8ee32310d3ed6fe66e639314ccae72d2fbbc886 Mon Sep 17 00:00:00 2001 +From: warmcat <andy@warmcat.com> +Date: Sun, 13 Apr 2008 07:25:50 +0100 +Subject: [PATCH] fix-glamo-mci-fake-reset-opcode-in-suspend.patch + +--- + arch/arm/mach-s3c2440/mach-gta02.c | 4 ++-- + drivers/mfd/glamo/glamo-core.c | 16 +++++++++------- + drivers/mfd/glamo/glamo-mci.c | 29 +++++++++++++++++++++-------- + 3 files changed, 32 insertions(+), 17 deletions(-) + +diff --git a/arch/arm/mach-s3c2440/mach-gta02.c b/arch/arm/mach-s3c2440/mach-gta02.c +index 750fd97..f18c8fd 100644 +--- a/arch/arm/mach-s3c2440/mach-gta02.c ++++ b/arch/arm/mach-s3c2440/mach-gta02.c +@@ -1281,6 +1281,8 @@ static void __init gta02_machine_init(void) + s3c2410_gpio_setpin(GTA02_GPIO_nWLAN_RESET, 1); + break; + } ++ mangle_glamo_res_by_system_rev(); ++ platform_device_register(>a02_glamo_dev); + + platform_device_register(&s3c_device_spi_acc); + platform_device_register(>a01_button_dev); +@@ -1291,8 +1293,6 @@ static void __init gta02_machine_init(void) + platform_device_register(>a01_led_dev); + platform_device_register(>a02_led_dev); + +- mangle_glamo_res_by_system_rev(); +- platform_device_register(>a02_glamo_dev); + + platform_device_register(>a02_sdio_dev); + +diff --git a/drivers/mfd/glamo/glamo-core.c b/drivers/mfd/glamo/glamo-core.c +index 2076e61..4d8e47f 100644 +--- a/drivers/mfd/glamo/glamo-core.c ++++ b/drivers/mfd/glamo/glamo-core.c +@@ -822,6 +822,8 @@ static void glamo_power(struct glamo_core *glamo, + { + spin_lock(&glamo->lock); + ++ dev_dbg(&glamo->pdev->dev, "***** glamo_power -> %d\n", new_state); ++ + switch (new_state) { + case GLAMO_POWER_ON: + /* power up PLL1 and PLL2 */ +@@ -1026,13 +1028,6 @@ static int __init glamo_probe(struct platform_device *pdev) + glamo_mci_def_pdata.glamo_irq_is_wired = + glamo->pdata->glamo_irq_is_wired; + +- glamo_mmc_dev.dev.parent = &pdev->dev; +- /* we need it later to give to the engine enable and disable */ +- glamo_mci_def_pdata.pglamo = glamo; +- mangle_mem_resources(glamo_mmc_dev.resource, +- glamo_mmc_dev.num_resources, glamo->mem); +- platform_device_register(&glamo_mmc_dev); +- + glamo_2d_dev.dev.parent = &pdev->dev; + mangle_mem_resources(glamo_2d_dev.resource, + glamo_2d_dev.num_resources, glamo->mem); +@@ -1065,6 +1060,13 @@ static int __init glamo_probe(struct platform_device *pdev) + glamo_spigpio_dev.dev.platform_data = glamo->pdata->spigpio_info; + platform_device_register(&glamo_spigpio_dev); + ++ glamo_mmc_dev.dev.parent = &pdev->dev; ++ /* we need it later to give to the engine enable and disable */ ++ glamo_mci_def_pdata.pglamo = glamo; ++ mangle_mem_resources(glamo_mmc_dev.resource, ++ glamo_mmc_dev.num_resources, glamo->mem); ++ platform_device_register(&glamo_mmc_dev); ++ + /* only request the generic, hostbus and memory controller MMIO */ + glamo->mem = request_mem_region(glamo->mem->start, + GLAMO_REGOFS_VIDCAP, "glamo-core"); +diff --git a/drivers/mfd/glamo/glamo-mci.c b/drivers/mfd/glamo/glamo-mci.c +index bbbbe4d..d8847c5 100644 +--- a/drivers/mfd/glamo/glamo-mci.c ++++ b/drivers/mfd/glamo/glamo-mci.c +@@ -405,11 +405,11 @@ static void glamo_mci_send_request(struct mmc_host *mmc) + u16 * reg_resp = (u16 *)(host->base + GLAMO_REG_MMC_CMD_RSP1); + u16 status; + int n; ++ int timeout = 100000000; + + if (host->suspending) { +- cmd->error = -EIO; +- if (cmd->data) +- cmd->data->error = -EIO; ++ dev_err(&host->pdev->dev, "faking cmd %d " ++ "during suspend\n", cmd->opcode); + mmc_request_done(mmc, mrq); + return; + } +@@ -502,10 +502,23 @@ static void glamo_mci_send_request(struct mmc_host *mmc) + * our own INT# line" + */ + if (!glamo_mci_def_pdata.pglamo->irq_works) { +- /* we have faith we will get an "interrupt"... */ +- while (!(readw_dly(glamo_mci_def_pdata.pglamo->base + +- GLAMO_REG_IRQ_STATUS) & GLAMO_IRQ_MMC)) ++ /* ++ * we have faith we will get an "interrupt"... ++ * but something insane like suspend problems can mean ++ * we spin here forever, so we timeout after a LONG time ++ */ ++ while ((!(readw_dly(glamo_mci_def_pdata.pglamo->base + ++ GLAMO_REG_IRQ_STATUS) & GLAMO_IRQ_MMC)) && ++ (timeout--)) + ; ++ ++ if (timeout < 0) { ++ if (cmd->data->error) ++ cmd->data->error = -ETIMEDOUT; ++ dev_err(&host->pdev->dev, "Payload timeout\n"); ++ return; ++ } ++ + /* yay we are an interrupt controller! -- call the ISR */ + glamo_mci_irq(IRQ_GLAMO(GLAMO_IRQIDX_MMC), + irq_desc + IRQ_GLAMO(GLAMO_IRQIDX_MMC)); +@@ -529,6 +542,7 @@ static void glamo_mci_request(struct mmc_host *mmc, struct mmc_request *mrq) + + static void glamo_mci_reset(struct glamo_mci_host *host) + { ++ dev_dbg(&host->pdev->dev, "******* glamo_mci_reset\n"); + /* reset MMC controller */ + writew_dly(GLAMO_CLOCK_MMC_RESET | GLAMO_CLOCK_MMC_DG_TCLK | + GLAMO_CLOCK_MMC_EN_TCLK | GLAMO_CLOCK_MMC_DG_M9CLK | +@@ -803,8 +817,7 @@ static int glamo_mci_suspend(struct platform_device *dev, pm_message_t state) + struct glamo_mci_host *host = mmc_priv(mmc); + + host->suspending++; +- +- return mmc_suspend_host(mmc, state); ++ return mmc_suspend_host(mmc, state); + } + + static int glamo_mci_resume(struct platform_device *dev) +-- +1.5.6.5 + |