| Message ID | 20240812-tdp158-v5-0-78684a84ec23@freebox.fr |
|---|---|
| Headers | show |
| Series | Basic support for TI TDP158 | expand |
On Mon, 12 Aug 2024 16:51:00 +0200, Marc Gonzalez wrote: > TDP158 is an AC-coupled DVI / HDMI to TMDS level shifting Redriver. > > Like the TFP410, the TDP158 can be set up in 2 different ways: > 1) hard-coding its configuration settings using pin-strapping resistors > 2) placing it on an I2C bus, and defer set-up until run-time > > The mode is selected by pin 8 = I2C_EN > I2C_EN = 1 ==> I2C Control Mode > I2C_EN = 0 ==> Pin Strap Mode > > [...] Applied, thanks! [1/2] dt-bindings: display: bridge: add TI TDP158 https://gitlab.freedesktop.org/drm/misc/kernel/-/commit/887665792b99 [2/2] drm/bridge: add support for TI TDP158 https://gitlab.freedesktop.org/drm/misc/kernel/-/commit/a15710027afb Rob
On Tue, 03 Sep 2024, Robert Foss <rfoss@kernel.org> wrote: > On Mon, 12 Aug 2024 16:51:00 +0200, Marc Gonzalez wrote: >> TDP158 is an AC-coupled DVI / HDMI to TMDS level shifting Redriver. >> >> Like the TFP410, the TDP158 can be set up in 2 different ways: >> 1) hard-coding its configuration settings using pin-strapping resistors >> 2) placing it on an I2C bus, and defer set-up until run-time >> >> The mode is selected by pin 8 = I2C_EN >> I2C_EN = 1 ==> I2C Control Mode >> I2C_EN = 0 ==> Pin Strap Mode >> >> [...] > > Applied, thanks! > > [1/2] dt-bindings: display: bridge: add TI TDP158 > https://gitlab.freedesktop.org/drm/misc/kernel/-/commit/887665792b99 > [2/2] drm/bridge: add support for TI TDP158 > https://gitlab.freedesktop.org/drm/misc/kernel/-/commit/a15710027afb Fails build with: ../drivers/gpu/drm/bridge/ti-tdp158.c: In function ‘tdp158_enable’: ../drivers/gpu/drm/bridge/ti-tdp158.c:31:9: error: implicit declaration of function ‘gpiod_set_value_cansleep’ [-Werror=implicit-function-declaration] 31 | gpiod_set_value_cansleep(tdp158->enable, 1); | ^~~~~~~~~~~~~~~~~~~~~~~~ ../drivers/gpu/drm/bridge/ti-tdp158.c: In function ‘tdp158_probe’: ../drivers/gpu/drm/bridge/ti-tdp158.c:80:26: error: implicit declaration of function ‘devm_gpiod_get_optional’; did you mean ‘devm_regulator_get_optional’? [-Werror=implicit-function-declaration] 80 | tdp158->enable = devm_gpiod_get_optional(dev, "enable", GPIOD_OUT_LOW); | ^~~~~~~~~~~~~~~~~~~~~~~ | devm_regulator_get_optional ../drivers/gpu/drm/bridge/ti-tdp158.c:80:65: error: ‘GPIOD_OUT_LOW’ undeclared (first use in this function) 80 | tdp158->enable = devm_gpiod_get_optional(dev, "enable", GPIOD_OUT_LOW); | ^~~~~~~~~~~~~ ../drivers/gpu/drm/bridge/ti-tdp158.c:80:65: note: each undeclared identifier is reported only once for each function it appears in BR, Jani.
TDP158 is an AC-coupled DVI / HDMI to TMDS level shifting Redriver. Like the TFP410, the TDP158 can be set up in 2 different ways: 1) hard-coding its configuration settings using pin-strapping resistors 2) placing it on an I2C bus, and defer set-up until run-time The mode is selected by pin 8 = I2C_EN I2C_EN = 1 ==> I2C Control Mode I2C_EN = 0 ==> Pin Strap Mode On our board, I2C_EN is pulled high (hard-wired). --- Changes in v5: - Add BSD-2-Clause option in YAML binding (Rob) + add Rob's tag - Link to v4: https://lore.kernel.org/r/20240730-tdp158-v4-0-da69001bdea2@freebox.fr Changes in v4: - Rebase series on top of v6.11-rc1 - Add blurb about I2C vs pin strap mode in cover letter - Add blurb about I2C vs pin strap mode in binding commit message - Add blurb about I2C mode in driver commit message - Add comment in binding explaining when reg is required - Add comment in binding describing Operation Enable / Reset Pin - Link to v3: https://lore.kernel.org/r/20240627-tdp158-v3-0-fb2fbc808346@freebox.fr Changes in v3: - Add 'select DRM_PANEL_BRIDGE' in driver Kconfig - Fix checkpatch errors - log errors using dev_err (so save dev pointer) - expand a few error messages - expand commit messages with info from the datasheet - mark regulators as required in the DT binding - Link to v2: https://lore.kernel.org/r/20240625-tdp158-v2-0-a3b344707fa7@freebox.fr Changes in v2: - Don't overload simple-bridge, spin new minimal driver - New driver, new binding - Default device settings work fine for us, so we don't tweak registers - Link to v1: https://lore.kernel.org/r/20240617-tdp158-v1-0-df98ef7dec6d@freebox.fr - Link to v0b: https://lore.kernel.org/r/b41f2f86-0d99-4199-92a9-42cbb9d6a6d5@freebox.fr/ - Link to v0a: https://lore.kernel.org/r/d3de652f-ce89-4f57-b900-07b11f8bf8f9@free.fr/ --- Marc Gonzalez (2): dt-bindings: display: bridge: add TI TDP158 drm/bridge: add support for TI TDP158 .../bindings/display/bridge/ti,tdp158.yaml | 57 +++++++++++ drivers/gpu/drm/bridge/Kconfig | 7 ++ drivers/gpu/drm/bridge/Makefile | 1 + drivers/gpu/drm/bridge/ti-tdp158.c | 108 +++++++++++++++++++++ 4 files changed, 173 insertions(+) --- base-commit: c6072668fcfb13295b600747dbd89f00da1a4ed9 change-id: 20240617-tdp158-418200d6cc0b Best regards,