From 2d0c08fcd67c23cf8433344544fb5a6c059c2572 Mon Sep 17 00:00:00 2001 From: Sandipan Patra Date: Thu, 5 Mar 2020 16:57:33 +0530 Subject: pwm: tegra: Add support for Tegra194 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Tegra194 has multiple PWM controllers with each having only one output. Also the maxmimum frequency is higher than earlier SoCs. Add support for Tegra194 and specify the number of PWM outputs and maximum supported frequency using device tree match data. Signed-off-by: Sandipan Patra Acked-by: Uwe Kleine-König Acked-by: Laxman Dewangan Acked-by: Rob Herring Acked-by: Jon Hunter Signed-off-by: Thierry Reding --- Documentation/devicetree/bindings/pwm/nvidia,tegra20-pwm.txt | 1 + drivers/pwm/pwm-tegra.c | 6 ++++++ 2 files changed, 7 insertions(+) diff --git a/Documentation/devicetree/bindings/pwm/nvidia,tegra20-pwm.txt b/Documentation/devicetree/bindings/pwm/nvidia,tegra20-pwm.txt index 0a69eadf44ce..74c41e34c3b6 100644 --- a/Documentation/devicetree/bindings/pwm/nvidia,tegra20-pwm.txt +++ b/Documentation/devicetree/bindings/pwm/nvidia,tegra20-pwm.txt @@ -9,6 +9,7 @@ Required properties: - "nvidia,tegra132-pwm", "nvidia,tegra20-pwm": for Tegra132 - "nvidia,tegra210-pwm", "nvidia,tegra20-pwm": for Tegra210 - "nvidia,tegra186-pwm": for Tegra186 + - "nvidia,tegra194-pwm": for Tegra194 - reg: physical base address and length of the controller's registers - #pwm-cells: should be 2. See pwm.yaml in this directory for a description of the cells format. diff --git a/drivers/pwm/pwm-tegra.c b/drivers/pwm/pwm-tegra.c index aa12fb3ed92e..d26ed8f579ff 100644 --- a/drivers/pwm/pwm-tegra.c +++ b/drivers/pwm/pwm-tegra.c @@ -282,9 +282,15 @@ static const struct tegra_pwm_soc tegra186_pwm_soc = { .max_frequency = 102000000UL, }; +static const struct tegra_pwm_soc tegra194_pwm_soc = { + .num_channels = 1, + .max_frequency = 408000000UL, +}; + static const struct of_device_id tegra_pwm_of_match[] = { { .compatible = "nvidia,tegra20-pwm", .data = &tegra20_pwm_soc }, { .compatible = "nvidia,tegra186-pwm", .data = &tegra186_pwm_soc }, + { .compatible = "nvidia,tegra194-pwm", .data = &tegra194_pwm_soc }, { } }; MODULE_DEVICE_TABLE(of, tegra_pwm_of_match); -- cgit v1.2.3