From bae3dee0992dcb336a591468376b046e5447997b Mon Sep 17 00:00:00 2001 From: Jisheng Zhang Date: Tue, 16 May 2017 14:17:20 +0800 Subject: mmc: sdhci-xenon: kill xenon_clean_phy() Currently, the xenon_clean_phy() is only used for freeing phy_params. The phy_params is allocated by devm_kzalloc(), there's no need to free is explicitly. Signed-off-by: Jisheng Zhang Acked-by: Hu Ziji Acked-by: Adrian Hunter --- drivers/mmc/host/sdhci-xenon-phy.c | 14 +------------- drivers/mmc/host/sdhci-xenon.c | 6 +----- drivers/mmc/host/sdhci-xenon.h | 1 - 3 files changed, 2 insertions(+), 19 deletions(-) (limited to 'drivers/mmc/host') diff --git a/drivers/mmc/host/sdhci-xenon-phy.c b/drivers/mmc/host/sdhci-xenon-phy.c index 6356781f1cca..f7e26b031e76 100644 --- a/drivers/mmc/host/sdhci-xenon-phy.c +++ b/drivers/mmc/host/sdhci-xenon-phy.c @@ -787,14 +787,6 @@ int xenon_phy_adj(struct sdhci_host *host, struct mmc_ios *ios) return ret; } -void xenon_clean_phy(struct sdhci_host *host) -{ - struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host); - struct xenon_priv *priv = sdhci_pltfm_priv(pltfm_host); - - kfree(priv->phy_params); -} - static int xenon_add_phy(struct device_node *np, struct sdhci_host *host, const char *phy_name) { @@ -819,11 +811,7 @@ static int xenon_add_phy(struct device_node *np, struct sdhci_host *host, if (ret) return ret; - ret = xenon_emmc_phy_parse_param_dt(host, np, priv->phy_params); - if (ret) - xenon_clean_phy(host); - - return ret; + return xenon_emmc_phy_parse_param_dt(host, np, priv->phy_params); } int xenon_phy_parse_dt(struct device_node *np, struct sdhci_host *host) diff --git a/drivers/mmc/host/sdhci-xenon.c b/drivers/mmc/host/sdhci-xenon.c index 67246655315b..bc1781bb070b 100644 --- a/drivers/mmc/host/sdhci-xenon.c +++ b/drivers/mmc/host/sdhci-xenon.c @@ -486,7 +486,7 @@ static int xenon_probe(struct platform_device *pdev) err = xenon_sdhc_prepare(host); if (err) - goto clean_phy_param; + goto err_clk; err = sdhci_add_host(host); if (err) @@ -496,8 +496,6 @@ static int xenon_probe(struct platform_device *pdev) remove_sdhc: xenon_sdhc_unprepare(host); -clean_phy_param: - xenon_clean_phy(host); err_clk: clk_disable_unprepare(pltfm_host->clk); free_pltfm: @@ -510,8 +508,6 @@ static int xenon_remove(struct platform_device *pdev) struct sdhci_host *host = platform_get_drvdata(pdev); struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host); - xenon_clean_phy(host); - sdhci_remove_host(host, 0); xenon_sdhc_unprepare(host); diff --git a/drivers/mmc/host/sdhci-xenon.h b/drivers/mmc/host/sdhci-xenon.h index 6e6523ea01ce..73debb42dc2f 100644 --- a/drivers/mmc/host/sdhci-xenon.h +++ b/drivers/mmc/host/sdhci-xenon.h @@ -93,7 +93,6 @@ struct xenon_priv { }; int xenon_phy_adj(struct sdhci_host *host, struct mmc_ios *ios); -void xenon_clean_phy(struct sdhci_host *host); int xenon_phy_parse_dt(struct device_node *np, struct sdhci_host *host); void xenon_soc_pad_ctrl(struct sdhci_host *host, -- cgit v1.2.3-70-g09d2 From aca69344c8a99e7374d913e42ba9120c398ee16f Mon Sep 17 00:00:00 2001 From: David Daney Date: Tue, 16 May 2017 11:36:51 +0200 Subject: mmc: cavium-octeon: Fix interrupt enable code OCTEON SoCs with CIU3 do not have interrupt masking local to the MMC bus interface. Unfortunately, some even have a diagnostic register at the same address of the enable register, which causes the interrupts to fire immediately if stored to, thus breaking the driver. The proper action on these SoCs is not to touch this register. Fixes: 01d95843335c ("mmc: cavium: Add MMC support for Octeon SOCs.") Signed-off-by: David Daney [jglauber@cavium.com: removed point after subject line] Signed-off-by: Jan Glauber Signed-off-by: Ulf Hansson --- drivers/mmc/host/cavium-octeon.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/mmc/host') diff --git a/drivers/mmc/host/cavium-octeon.c b/drivers/mmc/host/cavium-octeon.c index 772d0900026d..d698d66e3327 100644 --- a/drivers/mmc/host/cavium-octeon.c +++ b/drivers/mmc/host/cavium-octeon.c @@ -108,7 +108,7 @@ static void octeon_mmc_release_bus(struct cvm_mmc_host *host) static void octeon_mmc_int_enable(struct cvm_mmc_host *host, u64 val) { writeq(val, host->base + MIO_EMM_INT(host)); - if (!host->dma_active || (host->dma_active && !host->has_ciu3)) + if (!host->has_ciu3) writeq(val, host->base + MIO_EMM_INT_EN(host)); } -- cgit v1.2.3-70-g09d2 From 899e4aad15e93315fa18ab9e9c88904ad237cfa0 Mon Sep 17 00:00:00 2001 From: David Daney Date: Tue, 16 May 2017 11:36:52 +0200 Subject: mmc: cavium-octeon: Use proper GPIO name for power control The devm_gpiod_get_optional() function appends a "-gpios" to the string passed to it, so if we want to find the "power-gpios" signal, we must pass "power" to this function. Fixes: 01d95843335c ("mmc: cavium: Add MMC support for Octeon SOCs.") Signed-off-by: David Daney [jglauber@cavium.com: removed point after subject line] Signed-off-by: Jan Glauber Signed-off-by: Ulf Hansson --- drivers/mmc/host/cavium-octeon.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/mmc/host') diff --git a/drivers/mmc/host/cavium-octeon.c b/drivers/mmc/host/cavium-octeon.c index d698d66e3327..cbb566377508 100644 --- a/drivers/mmc/host/cavium-octeon.c +++ b/drivers/mmc/host/cavium-octeon.c @@ -267,7 +267,7 @@ static int octeon_mmc_probe(struct platform_device *pdev) } host->global_pwr_gpiod = devm_gpiod_get_optional(&pdev->dev, - "power-gpios", + "power", GPIOD_OUT_HIGH); if (IS_ERR(host->global_pwr_gpiod)) { dev_err(&pdev->dev, "Invalid power GPIO\n"); -- cgit v1.2.3-70-g09d2 From 9e7b9a25e170722f15ed54f5b963e9867f79195d Mon Sep 17 00:00:00 2001 From: Jan Glauber Date: Mon, 22 May 2017 13:09:19 +0200 Subject: mmc: cavium: Prevent crash with incomplete DT In case the DT specifies neither a regulator nor a gpio for the shared power the driver will crash accessing the regulator. Prevent the crash by checking the regulator before use. Use mmc_regulator_get_supply() instead of open coding the same logic. Signed-off-by: Jan Glauber Signed-off-by: Ulf Hansson --- drivers/mmc/host/cavium.c | 25 ++++++++++--------------- 1 file changed, 10 insertions(+), 15 deletions(-) (limited to 'drivers/mmc/host') diff --git a/drivers/mmc/host/cavium.c b/drivers/mmc/host/cavium.c index 58b51ba6aabd..b8aaf0fdb77c 100644 --- a/drivers/mmc/host/cavium.c +++ b/drivers/mmc/host/cavium.c @@ -839,14 +839,14 @@ static void cvm_mmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) cvm_mmc_reset_bus(slot); if (host->global_pwr_gpiod) host->set_shared_power(host, 0); - else + else if (!IS_ERR(mmc->supply.vmmc)) mmc_regulator_set_ocr(mmc, mmc->supply.vmmc, 0); break; case MMC_POWER_UP: if (host->global_pwr_gpiod) host->set_shared_power(host, 1); - else + else if (!IS_ERR(mmc->supply.vmmc)) mmc_regulator_set_ocr(mmc, mmc->supply.vmmc, ios->vdd); break; } @@ -968,20 +968,15 @@ static int cvm_mmc_of_parse(struct device *dev, struct cvm_mmc_slot *slot) return -EINVAL; } - mmc->supply.vmmc = devm_regulator_get_optional(dev, "vmmc"); - if (IS_ERR(mmc->supply.vmmc)) { - if (PTR_ERR(mmc->supply.vmmc) == -EPROBE_DEFER) - return -EPROBE_DEFER; - /* - * Legacy Octeon firmware has no regulator entry, fall-back to - * a hard-coded voltage to get a sane OCR. - */ + ret = mmc_regulator_get_supply(mmc); + if (ret == -EPROBE_DEFER) + return ret; + /* + * Legacy Octeon firmware has no regulator entry, fall-back to + * a hard-coded voltage to get a sane OCR. + */ + if (IS_ERR(mmc->supply.vmmc)) mmc->ocr_avail = MMC_VDD_32_33 | MMC_VDD_33_34; - } else { - ret = mmc_regulator_get_ocrmask(mmc->supply.vmmc); - if (ret > 0) - mmc->ocr_avail = ret; - } /* Common MMC bindings */ ret = mmc_of_parse(mmc); -- cgit v1.2.3-70-g09d2 From 8fb83b142823cdd1f85f78dcf9e861e9033919f9 Mon Sep 17 00:00:00 2001 From: Jan Glauber Date: Mon, 22 May 2017 13:09:21 +0200 Subject: mmc: cavium: Fix probing race with regulator If the regulator probing is not yet finished this driver might catch a -EPROBE_DEFER. Returning after this condition did not remove the created platform device. On a repeated call to the probe function the of_platform_device_create fails. Calling of_platform_device_destroy after EPROBE_DEFER resolves this bug. Signed-off-by: Jan Glauber Signed-off-by: Ulf Hansson --- drivers/mmc/host/cavium-octeon.c | 11 ++++++++++- drivers/mmc/host/cavium-thunderx.c | 6 ++++++ 2 files changed, 16 insertions(+), 1 deletion(-) (limited to 'drivers/mmc/host') diff --git a/drivers/mmc/host/cavium-octeon.c b/drivers/mmc/host/cavium-octeon.c index cbb566377508..951d2cdd7888 100644 --- a/drivers/mmc/host/cavium-octeon.c +++ b/drivers/mmc/host/cavium-octeon.c @@ -288,11 +288,20 @@ static int octeon_mmc_probe(struct platform_device *pdev) if (ret) { dev_err(&pdev->dev, "Error populating slots\n"); octeon_mmc_set_shared_power(host, 0); - return ret; + goto error; } i++; } return 0; + +error: + for (i = 0; i < CAVIUM_MAX_MMC; i++) { + if (host->slot[i]) + cvm_mmc_of_slot_remove(host->slot[i]); + if (host->slot_pdev[i]) + of_platform_device_destroy(&host->slot_pdev[i]->dev, NULL); + } + return ret; } static int octeon_mmc_remove(struct platform_device *pdev) diff --git a/drivers/mmc/host/cavium-thunderx.c b/drivers/mmc/host/cavium-thunderx.c index fe3d77267cd6..b9cc95998799 100644 --- a/drivers/mmc/host/cavium-thunderx.c +++ b/drivers/mmc/host/cavium-thunderx.c @@ -146,6 +146,12 @@ static int thunder_mmc_probe(struct pci_dev *pdev, return 0; error: + for (i = 0; i < CAVIUM_MAX_MMC; i++) { + if (host->slot[i]) + cvm_mmc_of_slot_remove(host->slot[i]); + if (host->slot_pdev[i]) + of_platform_device_destroy(&host->slot_pdev[i]->dev, NULL); + } clk_disable_unprepare(host->clk); return ret; } -- cgit v1.2.3-70-g09d2 From f5f968f2371ccdebb8a365487649673c9af68d09 Mon Sep 17 00:00:00 2001 From: Srinath Mannam Date: Thu, 18 May 2017 22:27:40 +0530 Subject: mmc: sdhci-iproc: suppress spurious interrupt with Multiblock read The stingray SDHCI hardware supports ACMD12 and automatically issues after multi block transfer completed. If ACMD12 in SDHCI is disabled, spurious tx done interrupts are seen on multi block read command with below error message: Got data interrupt 0x00000002 even though no data operation was in progress. This patch uses SDHCI_QUIRK_MULTIBLOCK_READ_ACMD12 to enable ACM12 support in SDHCI hardware and suppress spurious interrupt. Signed-off-by: Srinath Mannam Reviewed-by: Ray Jui Reviewed-by: Scott Branden Acked-by: Adrian Hunter Fixes: b580c52d58d9 ("mmc: sdhci-iproc: add IPROC SDHCI driver") Cc: Signed-off-by: Ulf Hansson --- drivers/mmc/host/sdhci-iproc.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers/mmc/host') diff --git a/drivers/mmc/host/sdhci-iproc.c b/drivers/mmc/host/sdhci-iproc.c index 3275d4995812..61666d269771 100644 --- a/drivers/mmc/host/sdhci-iproc.c +++ b/drivers/mmc/host/sdhci-iproc.c @@ -187,7 +187,8 @@ static const struct sdhci_iproc_data iproc_cygnus_data = { }; static const struct sdhci_pltfm_data sdhci_iproc_pltfm_data = { - .quirks = SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK, + .quirks = SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK | + SDHCI_QUIRK_MULTIBLOCK_READ_ACMD12, .quirks2 = SDHCI_QUIRK2_ACMD23_BROKEN, .ops = &sdhci_iproc_ops, }; -- cgit v1.2.3-70-g09d2 From 24835611a96e9b41ad57dd5024915106293be7e9 Mon Sep 17 00:00:00 2001 From: Heiner Kallweit Date: Sat, 10 Jun 2017 13:36:38 +0200 Subject: mmc: meson-gx: work around broken SDIO with certain WiFi chips There have been reports about SDIO failing with certain WiFi chips in descriptor chain mode. SD / eMMC are working fine. So let's fall back to bounce buffer mode for command SD_IO_RW_EXTENDED. This was reported to fix the error. Fixes: 79ed05e329c3 "mmc: meson-gx: add support for descriptor chain mode" Signed-off-by: Heiner Kallweit Tested-by: Martin Blumenstingl Signed-off-by: Ulf Hansson --- drivers/mmc/host/meson-gx-mmc.c | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'drivers/mmc/host') diff --git a/drivers/mmc/host/meson-gx-mmc.c b/drivers/mmc/host/meson-gx-mmc.c index 1842ed341af1..de962c2d5e00 100644 --- a/drivers/mmc/host/meson-gx-mmc.c +++ b/drivers/mmc/host/meson-gx-mmc.c @@ -210,6 +210,15 @@ static void meson_mmc_get_transfer_mode(struct mmc_host *mmc, int i; bool use_desc_chain_mode = true; + /* + * Broken SDIO with AP6255-based WiFi on Khadas VIM Pro has been + * reported. For some strange reason this occurs in descriptor + * chain mode only. So let's fall back to bounce buffer mode + * for command SD_IO_RW_EXTENDED. + */ + if (mrq->cmd->opcode == SD_IO_RW_EXTENDED) + return; + for_each_sg(data->sg, sg, data->sg_len, i) /* check for 8 byte alignment */ if (sg->offset & 7) { -- cgit v1.2.3-70-g09d2