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authorLinus Torvalds <torvalds@linux-foundation.org>2025-12-04 14:10:16 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2025-12-04 14:10:16 -0800
commitdd463c51a327d341d3ece63dd50e1a0f8f09c468 (patch)
tree670d0d6d7e34a3531df677420885741d009fb4e7 /drivers/mmc/host/renesas_sdhi_core.c
parent52206f82d9244546e5790f5ad64465343aa7ffd5 (diff)
parent79cf71c0b177c0e23d411e2469435e2c2f83f563 (diff)
Merge tag 'mmc-v6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
Pull MMC updates from Ulf Hansson: "MMC core: - Allow more host caps to be modified through debugfs - Skip to set the default 200mA SD current limit MMC host: - Convert a few more DT bindings to the DT schema - dw_mmc: Add Shawn Lin as co-maintainer for the dw_mmc drivers - dw_mmc-rockchip: - Add memory clock auto-gating support - Add support for the RK3506 variant - meson-mx-sdio: - Ignore disabled "mmc-slot" child-nodes - Refactoring and general code improvements - renesas_sdhi: - Enable bigger data ports where available - Manage reset in probe and during system-wide suspend/resume - sdhci-brcmstb: - Add support for the BCM72116 and BCM74371 variants - Save/restore registers during system-wide suspend/resume - sdhci-msm: - Add support for the sm8750 and the Kaanapali variants - Avoid early clock doubling during HS400 transition - sdhci-of-dwcmshc: - Add command queue support for Rockchip SOCs - Add support for the Eswin EIC7700 variant" * tag 'mmc-v6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: (40 commits) mmc: sdhci-of-dwcmshc: reduce CIT for better performance mmc: sdhci-of-dwcmshc: Disable internal clock auto gate for Rockchip SOCs mmc: sdhci-msm: Avoid early clock doubling during HS400 transition MAINTAINERS: Add Shawn Lin as co-maintainer for dw_mmc drivers mmc: sdhci-of-dwcmshc: Fix command queue support for RK3576 mmc: renesas_sdhi: Add suspend/resume hooks mmc: renesas_sdhi: Switch to SYSTEM_SLEEP_PM_OPS()/RUNTIME_PM_OPS() and pm_ptr() mmc: renesas_sdhi: Deassert the reset signal on probe dt-bindings: mmc: am654: Simplify dma-coherent property mmc: meson-mx-sdio: Ignore disabled "mmc-slot" child-nodes mmc: meson-mx-sdio: Fix indentation in meson_mx_mmc_irq_thread() mmc: meson-mx-sdio: Use dev_err_probe() where appropriate mmc: meson-mx-sdio: Use devm_mmc_alloc_host() helper mmc: meson-mx-sdio: Refactor internal clock initialization mmc: meson-mx-sdio: Use devm_clk_get_enabled() mmc: meson-mx-sdio: Switch to regmap for register access mmc: core: add WQ_PERCPU to alloc_workqueue users mmc: dw_mmc-rockchip: Add memory clock auto-gating support mmc: omap: add WQ_PERCPU to alloc_workqueue users mmc: mtk-sd: replace use of system_wq with system_percpu_wq ...
Diffstat (limited to 'drivers/mmc/host/renesas_sdhi_core.c')
-rw-r--r--drivers/mmc/host/renesas_sdhi_core.c39
1 files changed, 38 insertions, 1 deletions
diff --git a/drivers/mmc/host/renesas_sdhi_core.c b/drivers/mmc/host/renesas_sdhi_core.c
index f56fa2cd208d..2a310a145785 100644
--- a/drivers/mmc/host/renesas_sdhi_core.c
+++ b/drivers/mmc/host/renesas_sdhi_core.c
@@ -31,6 +31,7 @@
#include <linux/platform_data/tmio.h>
#include <linux/platform_device.h>
#include <linux/pm_domain.h>
+#include <linux/pm_runtime.h>
#include <linux/regulator/consumer.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/of_regulator.h>
@@ -1103,7 +1104,7 @@ int renesas_sdhi_probe(struct platform_device *pdev,
if (IS_ERR(priv->clk_cd))
return dev_err_probe(&pdev->dev, PTR_ERR(priv->clk_cd), "cannot get cd clock");
- priv->rstc = devm_reset_control_get_optional_exclusive(&pdev->dev, NULL);
+ priv->rstc = devm_reset_control_get_optional_exclusive_deasserted(&pdev->dev, NULL);
if (IS_ERR(priv->rstc))
return PTR_ERR(priv->rstc);
@@ -1317,5 +1318,41 @@ void renesas_sdhi_remove(struct platform_device *pdev)
}
EXPORT_SYMBOL_GPL(renesas_sdhi_remove);
+int renesas_sdhi_suspend(struct device *dev)
+{
+ struct tmio_mmc_host *host = dev_get_drvdata(dev);
+ struct renesas_sdhi *priv = host_to_priv(host);
+ int ret;
+
+ ret = pm_runtime_force_suspend(dev);
+ if (ret)
+ return ret;
+
+ ret = reset_control_assert(priv->rstc);
+ if (ret)
+ pm_runtime_force_resume(dev);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(renesas_sdhi_suspend);
+
+int renesas_sdhi_resume(struct device *dev)
+{
+ struct tmio_mmc_host *host = dev_get_drvdata(dev);
+ struct renesas_sdhi *priv = host_to_priv(host);
+ int ret;
+
+ ret = reset_control_deassert(priv->rstc);
+ if (ret)
+ return ret;
+
+ ret = pm_runtime_force_resume(dev);
+ if (ret)
+ reset_control_assert(priv->rstc);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(renesas_sdhi_resume);
+
MODULE_DESCRIPTION("Renesas SDHI core driver");
MODULE_LICENSE("GPL v2");