On Fri, 16 Feb 2024 at 02:22, Caleb Connolly <[email protected]> wrote: > > Use the modern helpers to fetch the clock and use the correct property > ("clocks" instead of "clock"). Drop the call to pinctrl_select_state() > as no boards have a "uart" pinctrl state and this prints confusing > errors. > > Signed-off-by: Caleb Connolly <[email protected]> > --- > arch/arm/dts/dragonboard410c.dts | 3 ++- > arch/arm/dts/dragonboard820c.dts | 3 ++- > drivers/serial/serial_msm.c | 25 +++++-------------------- > 3 files changed, 9 insertions(+), 22 deletions(-) >
Reviewed-by: Sumit Garg <[email protected]> -Sumit > diff --git a/arch/arm/dts/dragonboard410c.dts > b/arch/arm/dts/dragonboard410c.dts > index 02c824d0226c..c395e6cc0427 100644 > --- a/arch/arm/dts/dragonboard410c.dts > +++ b/arch/arm/dts/dragonboard410c.dts > @@ -84,7 +84,8 @@ > serial@78b0000 { > compatible = "qcom,msm-uartdm-v1.4"; > reg = <0x78b0000 0x200>; > - clock = <&clkc 4>; > + clocks = <&clkc 4>; > + clock-names = "core"; > pinctrl-names = "uart"; > pinctrl-0 = <&blsp1_uart>; > }; > diff --git a/arch/arm/dts/dragonboard820c.dts > b/arch/arm/dts/dragonboard820c.dts > index 146a0af8aafe..86b7f83d36d6 100644 > --- a/arch/arm/dts/dragonboard820c.dts > +++ b/arch/arm/dts/dragonboard820c.dts > @@ -78,7 +78,8 @@ > blsp2_uart2: serial@75b0000 { > compatible = "qcom,msm-uartdm-v1.4", > "qcom,msm-uartdm"; > reg = <0x75b0000 0x1000>; > - clock = <&gcc 4>; > + clocks = <&gcc 4>; > + clock-names = "core"; > pinctrl-names = "uart"; > pinctrl-0 = <&blsp8_uart>; > }; > diff --git a/drivers/serial/serial_msm.c b/drivers/serial/serial_msm.c > index 44b93bd7ff21..ac4280c6c4c2 100644 > --- a/drivers/serial/serial_msm.c > +++ b/drivers/serial/serial_msm.c > @@ -160,29 +160,14 @@ static int msm_uart_clk_init(struct udevice *dev) > { > uint clk_rate = fdtdec_get_uint(gd->fdt_blob, dev_of_offset(dev), > "clock-frequency", 115200); > - uint clkd[2]; /* clk_id and clk_no */ > - int clk_offset; > - struct udevice *clk_dev; > struct clk clk; > int ret; > > - ret = fdtdec_get_int_array(gd->fdt_blob, dev_of_offset(dev), "clock", > - clkd, 2); > - if (ret) > - return ret; > - > - clk_offset = fdt_node_offset_by_phandle(gd->fdt_blob, clkd[0]); > - if (clk_offset < 0) > - return clk_offset; > - > - ret = uclass_get_device_by_of_offset(UCLASS_CLK, clk_offset, > &clk_dev); > - if (ret) > - return ret; > - > - clk.id = clkd[1]; > - ret = clk_request(clk_dev, &clk); > - if (ret < 0) > + ret = clk_get_by_name(dev, "core", &clk); > + if (ret < 0) { > + pr_warn("%s: Failed to get clock: %d\n", __func__, ret); > return ret; > + } > > ret = clk_set_rate(&clk, clk_rate); > if (ret < 0) > @@ -218,7 +203,6 @@ static int msm_serial_probe(struct udevice *dev) > if (ret) > return ret; > > - pinctrl_select_state(dev, "uart"); > uart_dm_init(priv); > > return 0; > @@ -251,6 +235,7 @@ U_BOOT_DRIVER(serial_msm) = { > .priv_auto = sizeof(struct msm_serial_data), > .probe = msm_serial_probe, > .ops = &msm_serial_ops, > + .flags = DM_FLAG_PRE_RELOC, > }; > > #ifdef CONFIG_DEBUG_UART_MSM > > -- > 2.43.1 >
