On 22-08-15 09:30:38, Peng Fan (OSS) wrote:
> From: Peng Fan <peng.fan@xxxxxxx>
>
> The clk tree should be as:
> bus_aon_root------>\ /--->MU1_B IP
> -->MU_B gate-->
> bus_wakeup_root--->/ \--->MU2_B IP
>
> bus_aon_root------>\ /--->MU1_A IP
> -->MU_A gate-->
> bus_wakeup_root--->/ \--->MU2_A IP
>
> So need use shared count gate. And linux use MU_B,
> so set MU_A clk as CLK_IGNORE_UNUSED.
>
> Signed-off-by: Peng Fan <peng.fan@xxxxxxx>
> Reviewed-by: Ye Li <ye.li@xxxxxxx>
> Reviewed-by: Jacky Bai <ping.bai@xxxxxxx>
Reviewed-by: Abel Vesa <abel.vesa@xxxxxxxxxx>
> ---
> drivers/clk/imx/clk-imx93.c | 8 ++++++--
> 1 file changed, 6 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/clk/imx/clk-imx93.c b/drivers/clk/imx/clk-imx93.c
> index 73d30a2e64b0..4008ab075dfe 100644
> --- a/drivers/clk/imx/clk-imx93.c
> +++ b/drivers/clk/imx/clk-imx93.c
> @@ -28,6 +28,8 @@ enum clk_sel {
> MAX_SEL
> };
>
> +static u32 share_count_mub;
> +
> static const char *parent_names[MAX_SEL][4] = {
> {"osc_24m", "sys_pll_pfd0_div2", "sys_pll_pfd1_div2", "video_pll"},
> {"osc_24m", "sys_pll_pfd0_div2", "sys_pll_pfd1_div2", "sys_pll_pfd2_div2"},
> @@ -159,8 +161,10 @@ static const struct imx93_clk_ccgr {
> { IMX93_CLK_WDOG5_GATE, "wdog5", "osc_24m", 0x8400, },
> { IMX93_CLK_SEMA1_GATE, "sema1", "bus_aon_root", 0x8440, },
> { IMX93_CLK_SEMA2_GATE, "sema2", "bus_wakeup_root", 0x8480, },
> - { IMX93_CLK_MU_A_GATE, "mu_a", "bus_aon_root", 0x84c0, },
> - { IMX93_CLK_MU_B_GATE, "mu_b", "bus_aon_root", 0x8500, },
> + { IMX93_CLK_MU1_A_GATE, "mu1_a", "bus_aon_root", 0x84c0, CLK_IGNORE_UNUSED },
> + { IMX93_CLK_MU2_A_GATE, "mu2_a", "bus_wakeup_root", 0x84c0, CLK_IGNORE_UNUSED },
> + { IMX93_CLK_MU1_B_GATE, "mu1_b", "bus_aon_root", 0x8500, 0, &share_count_mub },
> + { IMX93_CLK_MU2_B_GATE, "mu2_b", "bus_wakeup_root", 0x8500, 0, &share_count_mub },
> { IMX93_CLK_EDMA1_GATE, "edma1", "m33_root", 0x8540, },
> { IMX93_CLK_EDMA2_GATE, "edma2", "wakeup_axi_root", 0x8580, },
> { IMX93_CLK_FLEXSPI1_GATE, "flexspi", "flexspi_root", 0x8640, },
> --
> 2.37.1
>
