[PATCH 4.19 3/7] dt-bindings: mmc: tegra: Add tmclk for Tegra210 and Tegra186

Sowjanya Komatineni
2020-08-28T22:26:10Z

commit b5a84ecf025a ("mmc: tegra: Add Tegra210 support")

Tegra210 and later uses separate SDMMC_LEGACY_TM clock for data
timeout.

So, this patch adds "tmclk" to Tegra sdhci clock property in the
device tree binding.

Fixes: b5a84ecf025a ("mmc: tegra: Add Tegra210 support")
Cc: stable <stable@vger.kernel.org> # 4.19
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Sowjanya Komatineni <skomatineni@nvidia.com>
---
.../bindings/mmc/nvidia,tegra20-sdhci.txt | 23 ++++++++++++++++++++--
1 file changed, 21 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/mmc/nvidia,tegra20-sdhci.txt b/Documentation/devicetree/bindings/mmc/nvidia,tegra20-sdhci.txt
index 9bce578..a5f1fae 100644
--- a/Documentation/devicetree/bindings/mmc/nvidia,tegra20-sdhci.txt
+++ b/Documentation/devicetree/bindings/mmc/nvidia,tegra20-sdhci.txt
@@ -14,8 +14,15 @@ Required properties:
- "nvidia,tegra124-sdhci": for Tegra124 and Tegra132
- "nvidia,tegra210-sdhci": for Tegra210
- "nvidia,tegra186-sdhci": for Tegra186
-- clocks : Must contain one entry, for the module clock.
- See ../clocks/clock-bindings.txt for details.
+- clocks: For Tegra210 and Tegra186 must contain two entries.
+ One for the module clock and one for the timeout clock.
+ For all other Tegra devices, must contain a single entry for
+ the module clock. See ../clocks/clock-bindings.txt for details.
+- clock-names: For Tegra210 and Tegra186 must contain the strings 'sdhci'
+ and 'tmclk' to represent the module and the timeout clocks,
+ respectively.
+ For all other Tegra devices must contain the string 'sdhci'
+ to represent the module clock.
- resets : Must contain an entry for each entry in reset-names.
See ../reset/reset.txt for details.
- reset-names : Must include the following entries:
@@ -38,3 +45,15 @@ sdhci@c8000200 {
power-gpios = <&gpio 155 0>; /* gpio PT3 */
bus-width = <8>;
};
+
+sdhci@700b0000 {
+ compatible = "nvidia,tegra210-sdhci";
+ reg = <0x0 0x700b0000 0x0 0x200>;
+ interrupts = <GIC_SPI 14 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&tegra_car TEGRA210_CLK_SDMMC1>,
+ <&tegra_car TEGRA210_CLK_SDMMC_LEGACY>;
+ clock-names = "sdhci", "tmclk";
+ resets = <&tegra_car 14>;
+ reset-names = "sdhci";
+ status = "disabled";
+};
--
2.7.4