[PATCH 1/5] SDHCI: Add a generic registration to the SDHCI platform driver
From: Alistair Popple <hidden>
Date: 2014-03-06 03:54:24
Also in:
linux-devicetree, linux-mmc, lkml
Subsystem:
multimedia card (mmc), secure digital (sd) and sdio subsystem, open firmware and flattened device tree bindings, secure digital host controller interface (sdhci) driver, the rest · Maintainers:
Ulf Hansson, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Adrian Hunter, Linus Torvalds
This patch adds a generic platform driver registration to the exiting SDHCI platform driver using the devicetree compatibility string "generic-sdhci". Signed-off-by: Alistair Popple <redacted> --- .../devicetree/bindings/mmc/sdhci-pltfm.txt | 16 +++++++++++++ drivers/mmc/host/sdhci-pltfm.c | 28 ++++++++++++++++++++++ 2 files changed, 44 insertions(+) create mode 100644 Documentation/devicetree/bindings/mmc/sdhci-pltfm.txt
diff --git a/Documentation/devicetree/bindings/mmc/sdhci-pltfm.txt b/Documentation/devicetree/bindings/mmc/sdhci-pltfm.txt
new file mode 100644
index 0000000..3940659
--- /dev/null
+++ b/Documentation/devicetree/bindings/mmc/sdhci-pltfm.txt@@ -0,0 +1,16 @@ +Generic SHDCI platform driver + +The generic SDHCI platform driver should support most SDHCI host +controllers. It uses the compatible="generic-sdhci" property and +supports the following device tree properties as described in mmc.txt. + +Supported properties (described in mmc.txt): +- reg +- interrupts +- wp-inverted +- broken-cd +- no-1-8-v +- keep-power-in-suspend +- enable-sdio-wakeup +- bus-width +- clock-frequency
diff --git a/drivers/mmc/host/sdhci-pltfm.c b/drivers/mmc/host/sdhci-pltfm.c
index bef250e..696d1f6 100644
--- a/drivers/mmc/host/sdhci-pltfm.c
+++ b/drivers/mmc/host/sdhci-pltfm.c@@ -260,6 +260,34 @@ const struct dev_pm_ops sdhci_pltfm_pmops = { EXPORT_SYMBOL_GPL(sdhci_pltfm_pmops); #endif /* CONFIG_PM */ +static int sdhci_generic_probe(struct platform_device *pdev) +{ + return sdhci_pltfm_register(pdev, NULL, 0); +} + +static int sdhci_generic_remove(struct platform_device *pdev) +{ + return sdhci_pltfm_unregister(pdev); +} + +static const struct of_device_id sdhci_generic_of_match[] = { + { .compatible = "generic-sdhci" }, + { } +}; +MODULE_DEVICE_TABLE(of, sdhci_generic_of_match); + +static struct platform_driver sdhci_generic_driver = { + .driver = { + .name = "sdhci-generic", + .owner = THIS_MODULE, + .of_match_table = sdhci_generic_of_match, + .pm = SDHCI_PLTFM_PMOPS, + }, + .probe = sdhci_generic_probe, + .remove = sdhci_generic_remove, +}; +module_platform_driver(sdhci_generic_driver); + static int __init sdhci_pltfm_drv_init(void) { pr_info("sdhci-pltfm: SDHCI platform and OF driver helper\n");
--
1.8.3.2