b167421e55
Add the latest linux available from https://github.com/armbian/build commit de58ac1faac92724c6449db12c22affaeb003875, tag: sunxi-5.3, alongside all the patches that it comes with. Signed-off-by: Vicentiu Galanopulo <vicentiu@balena.io>
66 lines
2.5 KiB
Diff
66 lines
2.5 KiB
Diff
From af6d185a66b416cb714fb3f1602e8e3f5ca46632 Mon Sep 17 00:00:00 2001
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From: Chen-Yu Tsai <wens@csie.org>
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Date: Fri, 7 Sep 2018 12:19:43 +0800
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Subject: [PATCH 087/146] drm/sun4i: tcon: Pass drm_encoder * into
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sun4i_tcon0_mode_set_cpu
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sun4i_tcon0_mode_set_cpu() currently accepts struct mipi_dsi_device *
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as its second parameter. This is derived from drm_encoder.
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The DSI encoder is tied to the CPU interface mode of the TCON as a
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special case. In theory, if hardware were available, we could also
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support normal CPU interface modes. It is better to pass the generic
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encoder instead of the specialized mipi_dsi_device, and handle the
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differences inside the function.
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Passing the encoder would also enable the function to pass it, or any
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other data structures related to it, to other functions expecting it.
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One such example would be dithering support that will be added in a
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later patch, which looks at properties tied to the connector to
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determine whether dithering should be enabled or not.
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Signed-off-by: Chen-Yu Tsai <wens@csie.org>
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---
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drivers/gpu/drm/sun4i/sun4i_tcon.c | 15 ++++++---------
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1 file changed, 6 insertions(+), 9 deletions(-)
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diff --git a/drivers/gpu/drm/sun4i/sun4i_tcon.c b/drivers/gpu/drm/sun4i/sun4i_tcon.c
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index 3fb084f802e2..52e1150612ba 100644
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--- a/drivers/gpu/drm/sun4i/sun4i_tcon.c
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+++ b/drivers/gpu/drm/sun4i/sun4i_tcon.c
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@@ -276,9 +276,12 @@ static void sun4i_tcon0_mode_set_common(struct sun4i_tcon *tcon,
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}
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static void sun4i_tcon0_mode_set_cpu(struct sun4i_tcon *tcon,
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- struct mipi_dsi_device *device,
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+ const struct drm_encoder *encoder,
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const struct drm_display_mode *mode)
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{
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+ /* TODO support normal CPU interface modes */
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+ struct sun6i_dsi *dsi = encoder_to_sun6i_dsi(encoder);
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+ struct mipi_dsi_device *device = dsi->device;
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u8 bpp = mipi_dsi_pixel_format_to_bpp(device->format);
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u8 lanes = device->lanes;
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u32 block_space, start_delay;
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@@ -581,16 +584,10 @@ void sun4i_tcon_mode_set(struct sun4i_tcon *tcon,
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const struct drm_encoder *encoder,
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const struct drm_display_mode *mode)
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{
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- struct sun6i_dsi *dsi;
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-
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switch (encoder->encoder_type) {
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case DRM_MODE_ENCODER_DSI:
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- /*
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- * This is not really elegant, but it's the "cleaner"
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- * way I could think of...
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- */
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- dsi = encoder_to_sun6i_dsi(encoder);
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- sun4i_tcon0_mode_set_cpu(tcon, dsi->device, mode);
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+ /* DSI is tied to special case of CPU interface */
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+ sun4i_tcon0_mode_set_cpu(tcon, encoder, mode);
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break;
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case DRM_MODE_ENCODER_LVDS:
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sun4i_tcon0_mode_set_lvds(tcon, encoder, mode);
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--
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2.17.1
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