kernel.git/drivers/mmc/host/bcm2835.c, branch linux-rolling-stable

mmc: Merge branch fixes into next

2025-07-03T12:17:35Z

Merge the mmc fixes for v6.16-rc[n] into the next branch, to allow them to get tested together with the new mmc changes that are targeted for v6.17. Signed-off-by: Ulf Hansson

mmc: bcm2835: Fix dma_unmap_sg() nents value

2025-07-03T12:16:16Z

The dma_unmap_sg() functions should be called with the same nents as the dma_map_sg(), not the value the map function returned. Fixes: 2f5da678351f ("mmc: bcm2835: Properly handle dmaengine_prep_slave_sg") Signed-off-by: Thomas Fourier Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20250630093510.82871-2-fourier.thomas@gmail.com Signed-off-by: Ulf Hansson

mmc: bcm2835: Use devm_mmc_alloc_host() helper

2025-06-24T10:43:22Z

Use new function devm_mmc_alloc_host() to simplify the code. Cc: Florian Fainelli Cc: Ray Jui Cc: Scott Branden Reviewed-by: Huacai Chen Signed-off-by: Binbin Zhou Link: https://lore.kernel.org/r/37a95baec1889f906134deb2dc761a98e950dcd1.1748933789.git.zhoubinbin@loongson.cn Signed-off-by: Ulf Hansson

mmc: bcm2835: Use str_read_write() helper

2025-05-19T12:00:50Z

Remove hard-coded strings by using the str_read_write() helper. Signed-off-by: Yumeng Fang Link: https://lore.kernel.org/r/20250515204201502Kzmj4I6k5Fv2FjqyEjF6n@zte.com.cn Signed-off-by: Ulf Hansson

mmc: bcm2835: add suspend/resume pm support

2024-12-10T10:18:45Z

Add a minimalistic suspend/resume PM support. Signed-off-by: Stefan Wahren Message-ID: <20241202115140.33492-1-wahrenst@gmx.net> Signed-off-by: Ulf Hansson

mmc: bcm2835: Introduce proper clock handling

2024-10-28T11:34:05Z

The custom sdhost controller on BCM2835 is feed by the critical VPU clock. In preparation for PM suspend/resume support, add a proper clock handling to the driver like in the other clock consumers (e.g. I2C). Move the clock handling behind mmc_of_parse(), because it could return with -EPROBE_DEFER and we want to minimize potential clock operation during boot phase. Signed-off-by: Stefan Wahren Message-ID: <20241025103621.4780-5-wahrenst@gmx.net> Signed-off-by: Ulf Hansson

mmc: bcm2835: Fix type of current clock speed

2024-10-28T11:33:36Z

The type of mmc_ios.clock is unsigned int, so the cached value should be of the same type. Signed-off-by: Stefan Wahren Message-ID: <20241025103621.4780-4-wahrenst@gmx.net> Signed-off-by: Ulf Hansson

mmc: Switch back to struct platform_driver::remove()

2024-10-14T10:29:01Z

After commit 0edb555a65d1 ("platform: Make platform_driver::remove() return void") .remove() is (again) the right callback to implement for platform drivers. Convert all platform drivers below drivers/mmc to use .remove(), with the eventual goal to drop struct platform_driver::remove_new(). As .remove() and .remove_new() have the same prototypes, conversion is done by just changing the structure member name in the driver initializer. Signed-off-by: Uwe Kleine-König Link: https://lore.kernel.org/r/20240927145832.754697-2-u.kleine-koenig@baylibre.com Signed-off-by: Ulf Hansson

mmc: bcm2835: Convert to platform remove callback returning void

2023-08-15T10:45:03Z

The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is (mostly) ignored and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new() which already returns void. Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Cc: Uwe Kleine-König Signed-off-by: Yangtao Li Reviewed-by: Florian Fainelli Link: https://lore.kernel.org/r/20230727070051.17778-2-frank.li@vivo.com Signed-off-by: Ulf Hansson

mmc: bcm2835: fix deferred probing

2023-06-19T11:31:12Z

The driver overrides the error codes and IRQ0 returned by platform_get_irq() to -EINVAL, so if it returns -EPROBE_DEFER, the driver will fail the probe permanently instead of the deferred probing. Switch to propagating the error codes upstream. Since commit ce753ad1549c ("platform: finally disallow IRQ0 in platform_get_irq() and its ilk") IRQ0 is no longer returned by those APIs, so we now can safely ignore it... Fixes: 660fc733bd74 ("mmc: bcm2835: Add new driver for the sdhost controller.") Cc: stable@vger.kernel.org # v5.19+ Signed-off-by: Sergey Shtylyov Link: https://lore.kernel.org/r/20230617203622.6812-2-s.shtylyov@omp.ru Signed-off-by: Ulf Hansson