Re: [PATCH v4 3/6] clk: qcom: Add SDX65 GCC support

Vinod Koul
2021-11-16T08:33:10Z

On 15-11-21, 23:38, quic_vamslank@quicinc.com wrote:
> From: Vamsi Krishna Lanka <quic_vamslank@quicinc.com>
>
> Add Global Clock Controller (GCC) support for SDX65 SoCs from Qualcomm.
>
> Signed-off-by: Vamsi Krishna Lanka <quic_vamslank@quicinc.com>
> Reported-by: kernel test robot <lkp@intel.com>

Missing support reported ??

> +static struct clk_branch gcc_ahb_pcie_link_clk = {
> + .halt_reg = 0x2e004,
> + .halt_check = BRANCH_HALT,
> + .clkr = {
> + .enable_reg = 0x2e004,
> + .enable_mask = BIT(0),
> + .hw.init = &(struct clk_init_data){
> + .name = "gcc_ahb_pcie_link_clk",
> + .flags = CLK_IS_CRITICAL,
> + .ops = &clk_branch2_ops,
> + },

If this clk is critical then why model in linux, enable directly in probe
and leave it...?

> +static struct clk_branch gcc_pcie_0_clkref_en = {
> + .halt_reg = 0x88004,
> + .halt_check = BRANCH_HALT_DELAY,

Why delay, add a comment at least for that

> + .clkr = {
> + .enable_reg = 0x88004,
> + .enable_mask = BIT(0),
> + .hw.init = &(struct clk_init_data){
> + .name = "gcc_pcie_0_clkref_en",
> + .ops = &clk_branch2_ops,
> + },
> + },
> +};
> +
> +static struct clk_branch gcc_pcie_aux_clk = {
> + .halt_reg = 0x43034,
> + .halt_check = BRANCH_HALT_DELAY,

Here too

> +static struct clk_branch gcc_pcie_mstr_axi_clk = {
> + .halt_reg = 0x43024,
> + .halt_check = BRANCH_HALT_VOTED,
> + .hwcg_reg = 0x43024,
> + .hwcg_bit = 1,
> + .clkr = {
> + .enable_reg = 0x6d010,
> + .enable_mask = BIT(1),
> + .hw.init = &(struct clk_init_data){
> + .name = "gcc_pcie_mstr_axi_clk",
> + .ops = &clk_branch2_ops,
> + },
> + },
> +};
> +
> +static struct clk_branch gcc_pcie_pipe_clk = {
> + .halt_reg = 0x4303c,
> + .halt_check = BRANCH_HALT_DELAY,

here as well and few more places I guess

> +static struct clk_branch gcc_xo_pcie_link_clk = {
> + .halt_reg = 0x2e008,
> + .halt_check = BRANCH_HALT,
> + .hwcg_reg = 0x2e008,
> + .hwcg_bit = 1,
> + .clkr = {
> + .enable_reg = 0x2e008,
> + .enable_mask = BIT(0),
> + .hw.init = &(struct clk_init_data){
> + .name = "gcc_xo_pcie_link_clk",
> + .flags = CLK_IS_CRITICAL,

Here as well
--
~Vinod