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| author | Marek Vasut <marex@denx.de> | 2022-03-31 17:05:09 +0200 |
|---|---|---|
| committer | Robert Foss <robert.foss@linaro.org> | 2022-03-31 17:20:46 +0200 |
| commit | 17a9c1aaa8485b7be0f20233bdc5bf0b4527f4a7 (patch) | |
| tree | 2040d140ee4bee0bd9b209e9db3a55fa77caecaa /COPYING | |
| parent | 33f1036b785caeb5f0b7935ee771214cfd75b3f8 (diff) | |
| download | linux-17a9c1aaa8485b7be0f20233bdc5bf0b4527f4a7.tar.bz2 | |
drm: bridge: icn6211: Read and validate chip IDs before configuration
Read out the Vendor/Chip/Version ID registers from the chip before
performing any configuration, and validate that the registers have
correct values. This is mostly a simple test whether DSI register
access does work, since that tends to be broken on various bridges.
Acked-by: Maxime Ripard <maxime@cerno.tech>
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Jagan Teki <jagan@amarulasolutions.com>
Cc: Maxime Ripard <maxime@cerno.tech>
Cc: Robert Foss <robert.foss@linaro.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
To: dri-devel@lists.freedesktop.org
Signed-off-by: Robert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220331150509.9838-12-marex@denx.de
Diffstat (limited to 'COPYING')
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