From 8299d1f057439f94c6a4412e2e5c5082b82a30c9 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=C3=81lvaro=20Fern=C3=A1ndez=20Rojas?= Date: Sat, 21 Aug 2021 10:54:34 +0200 Subject: bcm27xx: add kernel 5.10 support MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Rebased RPi foundation patches on linux 5.10.59, removed applied and reverted patches, wireless patches and defconfig patches. bcm2708: boot tested on RPi B+ v1.2 bcm2709: boot tested on RPi 4B v1.1 4G bcm2711: boot tested on RPi 4B v1.1 4G Signed-off-by: Álvaro Fernández Rojas --- ...ow-DBLCLK-modes-even-if-horz-timing-is-od.patch | 42 ++++++++++++++++++++++ 1 file changed, 42 insertions(+) create mode 100644 target/linux/bcm27xx/patches-5.10/950-0592-drm-vc4-Allow-DBLCLK-modes-even-if-horz-timing-is-od.patch (limited to 'target/linux/bcm27xx/patches-5.10/950-0592-drm-vc4-Allow-DBLCLK-modes-even-if-horz-timing-is-od.patch') diff --git a/target/linux/bcm27xx/patches-5.10/950-0592-drm-vc4-Allow-DBLCLK-modes-even-if-horz-timing-is-od.patch b/target/linux/bcm27xx/patches-5.10/950-0592-drm-vc4-Allow-DBLCLK-modes-even-if-horz-timing-is-od.patch new file mode 100644 index 0000000000..455042783a --- /dev/null +++ b/target/linux/bcm27xx/patches-5.10/950-0592-drm-vc4-Allow-DBLCLK-modes-even-if-horz-timing-is-od.patch @@ -0,0 +1,42 @@ +From 9f7c0728efb0036f6f197126aa62da40cdf4713a Mon Sep 17 00:00:00 2001 +From: Dave Stevenson +Date: Wed, 28 Apr 2021 16:14:21 +0100 +Subject: [PATCH] drm/vc4: Allow DBLCLK modes even if horz timing is + odd. + +The 2711 pixel valve can't produce odd horizontal timings, and +checks were added to vc4_hdmi_encoder_atomic_check and +vc4_hdmi_encoder_mode_valid to filter out/block selection of +such modes. + +Modes with DRM_MODE_FLAG_DBLCLK double all the horizontal timing +values before programming them into the PV. The PV values, +therefore, can not be odd, and so the modes can be supported. + +Amend the filtering appropriately. + +See https://github.com/raspberrypi/linux/issues/4307 + +Signed-off-by: Dave Stevenson +--- + drivers/gpu/drm/vc4/vc4_hdmi.c | 2 ++ + 1 file changed, 2 insertions(+) + +--- a/drivers/gpu/drm/vc4/vc4_hdmi.c ++++ b/drivers/gpu/drm/vc4/vc4_hdmi.c +@@ -1066,6 +1066,7 @@ static int vc4_hdmi_encoder_atomic_check + unsigned long long tmds_rate; + + if (vc4_hdmi->variant->unsupported_odd_h_timings && ++ !(mode->flags & DRM_MODE_FLAG_DBLCLK) && + ((mode->hdisplay % 2) || (mode->hsync_start % 2) || + (mode->hsync_end % 2) || (mode->htotal % 2))) + return -EINVAL; +@@ -1110,6 +1111,7 @@ vc4_hdmi_encoder_mode_valid(struct drm_e + struct vc4_hdmi *vc4_hdmi = encoder_to_vc4_hdmi(encoder); + + if (vc4_hdmi->variant->unsupported_odd_h_timings && ++ !(mode->flags & DRM_MODE_FLAG_DBLCLK) && + ((mode->hdisplay % 2) || (mode->hsync_start % 2) || + (mode->hsync_end % 2) || (mode->htotal % 2))) + return MODE_H_ILLEGAL; -- cgit v1.2.3