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drm/tinydrm/mipi-dbi: Add poweron-reset functions

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Split out common poweron-reset functionality.

Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Reviewed-by: David Lechner <david@lechnology.com>
Tested-by: David Lechner <david@lechnology.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180110185940.53841-5-noralf@tronnes.org
This commit is contained in:
Noralf Trønnes
2018-01-10 19:59:37 +01:00
parent 22edc8d38b
commit 070ab1283a
5 changed files with 83 additions and 32 deletions
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9
drivers/gpu/drm/tinydrm/st7586.c
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@@ -179,19 +179,16 @@ static void st7586_pipe_enable(struct drm_simple_display_pipe *pipe,
{
struct tinydrm_device *tdev = pipe_to_tinydrm(pipe);
struct mipi_dbi *mipi = mipi_dbi_from_tinydrm(tdev);
struct device *dev = tdev->drm->dev;
int ret;
u8 addr_mode;
DRM_DEBUG_KMS("\n");
mipi_dbi_hw_reset(mipi);
ret = mipi_dbi_command(mipi, ST7586_AUTO_READ_CTRL, 0x9f);
if (ret) {
DRM_DEV_ERROR(dev, "Error sending command %d\n", ret);
ret = mipi_dbi_poweron_reset(mipi);
if (ret)
return;
}
mipi_dbi_command(mipi, ST7586_AUTO_READ_CTRL, 0x9f);
mipi_dbi_command(mipi, ST7586_OTP_RW_CTRL, 0x00);
msleep(10);