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path: root/drivers/video/rockchip/rk_hdmi.c
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* rockchip: video: Avoid using u8 in the HDMI driverSimon Glass2016-11-25-15/+15
| | | | | | | | It makes not sense using u8 to hold a value on a 32-bit or 64-bit machine. It can only bloat the code by forcing the compiler to mask the value. Change it to uint. Signed-off-by: Simon Glass <sjg@chromium.org>
* rockchip: video: Correct HDMI data source selectionSimon Glass2016-11-25-1/+2
| | | | | | | | | | This code currently always selects the second source. It only worked because both sources are set up. With the change to only init video devices that are present in the stdout environment variable, this fails. Fix it. Signed-off-by: Simon Glass <sjg@chromium.org>
* rockchip: video: Lower hpd wait timeSjoerd Simons2016-07-05-1/+1
| | | | | | | | | | | | | Waiting 30 seconds for the hpd to go high seems a bit much, especially on headless boots. Lowering the timeout to 300ms. Sending as RFC because frankly i don't know what a sensible timeout is here, but 30 seconds is clearly not it :) Signed-off-by: Sjoerd Simons <sjoerd.simons@collabora.co.uk> Reviewed-by: Simon Glass <sjg@chromium.org> Dropped RFC tag: Signed-off-by: Simon Glass <sjg@chromium.org>
* clk: convert API to match reset/mailbox styleStephen Warren2016-06-19-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The following changes are made to the clock API: * The concept of "clocks" and "peripheral clocks" are unified; each clock provider now implements a single set of clocks. This provides a simpler conceptual interface to clients, and better aligns with device tree clock bindings. * Clocks are now identified with a single "struct clk", rather than requiring clients to store the clock provider device and clock identity values separately. For simple clock consumers, this isolates clients from internal details of the clock API. * clk.h is split so it only contains the client/consumer API, whereas clk-uclass.h contains the provider API. This aligns with the recently added reset and mailbox APIs. * clk_ops .of_xlate(), .request(), and .free() are added so providers can customize these operations if needed. This also aligns with the recently added reset and mailbox APIs. * clk_disable() is added. * All users of the current clock APIs are updated. * Sandbox clock tests are updated to exercise clock lookup via DT, and clock enable/disable. * rkclk_get_clk() is removed and replaced with standard APIs. Buildman shows no clock-related errors for any board for which buildman can download a toolchain. test/py passes for sandbox (which invokes the dm clk test amongst others). Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Simon Glass <sjg@chromium.org>
* rockchip: video: Add a display driver for rockchip HDMISimon Glass2016-01-21-0/+933
Some Rockchip SoCs support HDMI output. Add a display driver for this so that these displays can be used on supported boards. Unfortunately this driver is not fully functional. It cannot reliably read EDID information over HDMI. This seems to be due to the clocks being incorrect - the I2C bus speed appears to be up to 100x slower than the clock settings indicate. The root cause may be in the clock logic. Signed-off-by: Simon Glass <sjg@chromium.org>