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authorTom Rini <trini@konsulko.com>2024-07-08 11:56:59 -0600
committerTom Rini <trini@konsulko.com>2024-07-08 11:56:59 -0600
commit475aa8345a78396d39b42f96eccecd37ebe24e99 (patch)
treec788908a4d8b32a0624c59c4ad60ebbb82998674 /drivers/i2c/mtk_i2c.c
parente13fcae3fce8b2c4db86339c9e8bafdd403f22b5 (diff)
parent4b45082bf710097c8aa6f3ec25c3f34c54c7398c (diff)
Merge patch series "mediatek: cumulative trivial fix for OF_UPSTREAM support"
Christian Marangi <ansuelsmth@gmail.com> says: This is an initial series that have all the initial trivial fixes required for usage of OF_UPSTREAM for the mediatek SoC This also contains the pcie-gen3 driver and the required tphy support driver to make it work. Subsequent series will follow with conversion of the mtk-clk to permit usage of OF_UPSTREAM and upstream clk ID. MT7981, MT7986 and MT7988 migration to upstream clock ID is complete and working on MT7623. Series CI tested with PR: https://github.com/u-boot/u-boot/pull/590
Diffstat (limited to 'drivers/i2c/mtk_i2c.c')
-rw-r--r--drivers/i2c/mtk_i2c.c30
1 files changed, 30 insertions, 0 deletions
diff --git a/drivers/i2c/mtk_i2c.c b/drivers/i2c/mtk_i2c.c
index 5592fe91817..3450177741a 100644
--- a/drivers/i2c/mtk_i2c.c
+++ b/drivers/i2c/mtk_i2c.c
@@ -221,6 +221,8 @@ struct mtk_i2c_priv {
void __iomem *pdmabase; /* dma base address*/
struct clk clk_main; /* main clock for i2c bus */
struct clk clk_dma; /* DMA clock for i2c via DMA */
+ struct clk clk_arb; /* DMA clock for i2c ARB */
+ struct clk clk_pmic; /* DMA clock for i2c PMIC */
const struct mtk_i2c_soc_data *soc_data; /* Compatible data for different IC */
int op; /* operation mode */
bool zero_len; /* Only transfer slave address, no data */
@@ -255,6 +257,18 @@ static int mtk_i2c_clk_enable(struct mtk_i2c_priv *priv)
if (ret)
return log_msg_ret("enable clk_dma", ret);
+ if (priv->clk_arb.dev) {
+ ret = clk_enable(&priv->clk_arb);
+ if (ret)
+ return log_msg_ret("enable clk_arb", ret);
+ }
+
+ if (priv->clk_pmic.dev) {
+ ret = clk_enable(&priv->clk_pmic);
+ if (ret)
+ return log_msg_ret("enable clk_pmic", ret);
+ }
+
return 0;
}
@@ -262,6 +276,18 @@ static int mtk_i2c_clk_disable(struct mtk_i2c_priv *priv)
{
int ret;
+ if (priv->clk_pmic.dev) {
+ ret = clk_disable(&priv->clk_pmic);
+ if (ret)
+ return log_msg_ret("disable clk_pmic", ret);
+ }
+
+ if (priv->clk_arb.dev) {
+ ret = clk_disable(&priv->clk_arb);
+ if (ret)
+ return log_msg_ret("disable clk_arb", ret);
+ }
+
ret = clk_disable(&priv->clk_dma);
if (ret)
return log_msg_ret("disable clk_dma", ret);
@@ -748,6 +774,10 @@ static int mtk_i2c_of_to_plat(struct udevice *dev)
ret = clk_get_by_index(dev, 1, &priv->clk_dma);
+ /* optional i2c clock */
+ clk_get_by_name(dev, "arb", &priv->clk_arb);
+ clk_get_by_name(dev, "pmic", &priv->clk_pmic);
+
return ret;
}