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Mon, 28 Jul 2025 22:44:44 -0700 (PDT) From: Brigham Campbell To: maarten.lankhorst@linux.intel.com, mripard@kernel.org, tzimmermann@suse.de, airlied@gmail.com, simona@ffwll.ch, linus.walleij@linaro.org, neil.armstrong@linaro.org, jessica.zhang@oss.qualcomm.com, sam@ravnborg.org Cc: dianders@chromium.org, skhan@linuxfoundation.org, linux-kernel-mentees@lists.linux.dev, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, Brigham Campbell Subject: [PATCH v2 0/3] drm/panel: novatek-nt35560: Fix bug and clean up Date: Mon, 28 Jul 2025 23:44:32 -0600 Message-ID: <20250729054435.1209156-1-me@brighamcampbell.com> X-Mailer: git-send-email 2.50.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Fix bug in novatek-nt35560 driver's nt35560_set_brightness() which causes the driver to incorrectly report that it "failed to disable display backlight". Add mipi_dsi_dcs_read_multi() to drm_mipi_dsi.c for improved error handling in drivers which use mipi_dsi_dcs_read() multiple times in a row. It seems like although this feature may be useful for the nt35560, we don't expect many drivers to use it. Once again, I am happy to remove this change if it's not worth maintaining. Add mipi_dsi_dcs_write_var_seq_multi() and mipi_dsi_generic_write_var_seq_multi() to drm_mipi_dsi.h to allow drivers to more conveniently construct MIPI payloads at runtime. Clean up novatek-nt35560 driver to use "multi" variants of MIPI functions which promote cleaner code. Brigham Campbell (3): drm/panel: novatek-nt35560: Fix invalid return value drm: Add MIPI support function and macros drm/panel: novatek-nt35560: Clean up driver drivers/gpu/drm/drm_mipi_dsi.c | 37 ++++ drivers/gpu/drm/panel/panel-novatek-nt35560.c | 198 ++++++------------ include/drm/drm_mipi_dsi.h | 35 ++++ 3 files changed, 132 insertions(+), 138 deletions(-) base-commit: 33f8f321e7aa7715ce19560801ee5223ba8b9a7d -- 2.50.1