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Date: Sat, 15 Jul 2023 16:10:09 +0200
From: Konrad Dybcio <konrad.dybcio@...aro.org>
To: Kathiravan T <quic_kathirav@...cinc.com>,
Bjorn Andersson <andersson@...nel.org>,
Andy Gross <agross@...nel.org>,
Michael Turquette <mturquette@...libre.com>,
Stephen Boyd <sboyd@...nel.org>, linux-arm-msm@...r.kernel.org,
linux-clk@...r.kernel.org, linux-kernel@...r.kernel.org
Cc: quic_srichara@...cinc.com, quic_sjaganat@...cinc.com,
quic_anusha@...cinc.com, quic_saahtoma@...cinc.com
Subject: Re: [PATCH 1/2] clk: qcom: ipq5332: drop the mem noc clocks
On 10.07.2023 12:28, Kathiravan T wrote:
> Due to the recent design changes, all the mem noc clocks will be
> configured by the bootloaders and it will be access protected by the TZ
> firmware. So drop these clocks from the GCC driver.
>
> Signed-off-by: Kathiravan T <quic_kathirav@...cinc.com>
> ---
Are there any IPQ5332s outside Qualcomm labs that will presumably
never get that TZ update?
Konrad
> drivers/clk/qcom/gcc-ipq5332.c | 95 ----------------------------------
> 1 file changed, 95 deletions(-)
>
> diff --git a/drivers/clk/qcom/gcc-ipq5332.c b/drivers/clk/qcom/gcc-ipq5332.c
> index a75ab88ed14c..939925baa9eb 100644
> --- a/drivers/clk/qcom/gcc-ipq5332.c
> +++ b/drivers/clk/qcom/gcc-ipq5332.c
> @@ -1635,42 +1635,6 @@ static struct clk_branch gcc_mdio_slave_ahb_clk = {
> },
> };
>
> -static struct clk_branch gcc_mem_noc_q6_axi_clk = {
> - .halt_reg = 0x19010,
> - .halt_check = BRANCH_HALT,
> - .clkr = {
> - .enable_reg = 0x19010,
> - .enable_mask = BIT(0),
> - .hw.init = &(const struct clk_init_data) {
> - .name = "gcc_mem_noc_q6_axi_clk",
> - .parent_hws = (const struct clk_hw*[]) {
> - &gcc_q6_axim_clk_src.clkr.hw,
> - },
> - .num_parents = 1,
> - .flags = CLK_SET_RATE_PARENT,
> - .ops = &clk_branch2_ops,
> - },
> - },
> -};
> -
> -static struct clk_branch gcc_mem_noc_ts_clk = {
> - .halt_reg = 0x19028,
> - .halt_check = BRANCH_HALT_VOTED,
> - .clkr = {
> - .enable_reg = 0x19028,
> - .enable_mask = BIT(0),
> - .hw.init = &(const struct clk_init_data) {
> - .name = "gcc_mem_noc_ts_clk",
> - .parent_hws = (const struct clk_hw*[]) {
> - &gcc_qdss_tsctr_div8_clk_src.hw,
> - },
> - .num_parents = 1,
> - .flags = CLK_SET_RATE_PARENT,
> - .ops = &clk_branch2_ops,
> - },
> - },
> -};
> -
> static struct clk_branch gcc_nss_ts_clk = {
> .halt_reg = 0x17018,
> .halt_check = BRANCH_HALT_VOTED,
> @@ -3339,42 +3303,6 @@ static struct clk_branch gcc_nssnoc_pcnoc_1_clk = {
> },
> };
>
> -static struct clk_branch gcc_mem_noc_ahb_clk = {
> - .halt_reg = 0x1900c,
> - .halt_check = BRANCH_HALT,
> - .clkr = {
> - .enable_reg = 0x1900c,
> - .enable_mask = BIT(0),
> - .hw.init = &(const struct clk_init_data) {
> - .name = "gcc_mem_noc_ahb_clk",
> - .parent_hws = (const struct clk_hw*[]) {
> - &gcc_pcnoc_bfdcd_clk_src.clkr.hw,
> - },
> - .num_parents = 1,
> - .flags = CLK_SET_RATE_PARENT,
> - .ops = &clk_branch2_ops,
> - },
> - },
> -};
> -
> -static struct clk_branch gcc_mem_noc_apss_axi_clk = {
> - .halt_reg = 0x1901c,
> - .halt_check = BRANCH_HALT_VOTED,
> - .clkr = {
> - .enable_reg = 0xb004,
> - .enable_mask = BIT(6),
> - .hw.init = &(const struct clk_init_data) {
> - .name = "gcc_mem_noc_apss_axi_clk",
> - .parent_hws = (const struct clk_hw*[]) {
> - &gcc_apss_axi_clk_src.clkr.hw,
> - },
> - .num_parents = 1,
> - .flags = CLK_SET_RATE_PARENT,
> - .ops = &clk_branch2_ops,
> - },
> - },
> -};
> -
> static struct clk_regmap_div gcc_snoc_qosgen_extref_div_clk_src = {
> .reg = 0x2e010,
> .shift = 0,
> @@ -3390,24 +3318,6 @@ static struct clk_regmap_div gcc_snoc_qosgen_extref_div_clk_src = {
> },
> };
>
> -static struct clk_branch gcc_mem_noc_qosgen_extref_clk = {
> - .halt_reg = 0x19024,
> - .halt_check = BRANCH_HALT,
> - .clkr = {
> - .enable_reg = 0x19024,
> - .enable_mask = BIT(0),
> - .hw.init = &(const struct clk_init_data) {
> - .name = "gcc_mem_noc_qosgen_extref_clk",
> - .parent_hws = (const struct clk_hw*[]) {
> - &gcc_snoc_qosgen_extref_div_clk_src.clkr.hw,
> - },
> - .num_parents = 1,
> - .flags = CLK_SET_RATE_PARENT,
> - .ops = &clk_branch2_ops,
> - },
> - },
> -};
> -
> static struct clk_regmap *gcc_ipq5332_clocks[] = {
> [GPLL0_MAIN] = &gpll0_main.clkr,
> [GPLL0] = &gpll0.clkr,
> @@ -3451,8 +3361,6 @@ static struct clk_regmap *gcc_ipq5332_clocks[] = {
> [GCC_LPASS_SWAY_CLK_SRC] = &gcc_lpass_sway_clk_src.clkr,
> [GCC_MDIO_AHB_CLK] = &gcc_mdio_ahb_clk.clkr,
> [GCC_MDIO_SLAVE_AHB_CLK] = &gcc_mdio_slave_ahb_clk.clkr,
> - [GCC_MEM_NOC_Q6_AXI_CLK] = &gcc_mem_noc_q6_axi_clk.clkr,
> - [GCC_MEM_NOC_TS_CLK] = &gcc_mem_noc_ts_clk.clkr,
> [GCC_NSS_TS_CLK] = &gcc_nss_ts_clk.clkr,
> [GCC_NSS_TS_CLK_SRC] = &gcc_nss_ts_clk_src.clkr,
> [GCC_NSSCC_CLK] = &gcc_nsscc_clk.clkr,
> @@ -3573,10 +3481,7 @@ static struct clk_regmap *gcc_ipq5332_clocks[] = {
> [GCC_XO_DIV4_CLK] = &gcc_xo_div4_clk.clkr,
> [GCC_IM_SLEEP_CLK] = &gcc_im_sleep_clk.clkr,
> [GCC_NSSNOC_PCNOC_1_CLK] = &gcc_nssnoc_pcnoc_1_clk.clkr,
> - [GCC_MEM_NOC_AHB_CLK] = &gcc_mem_noc_ahb_clk.clkr,
> - [GCC_MEM_NOC_APSS_AXI_CLK] = &gcc_mem_noc_apss_axi_clk.clkr,
> [GCC_SNOC_QOSGEN_EXTREF_DIV_CLK_SRC] = &gcc_snoc_qosgen_extref_div_clk_src.clkr,
> - [GCC_MEM_NOC_QOSGEN_EXTREF_CLK] = &gcc_mem_noc_qosgen_extref_clk.clkr,
> [GCC_PCIE3X2_PIPE_CLK_SRC] = &gcc_pcie3x2_pipe_clk_src.clkr,
> [GCC_PCIE3X1_0_PIPE_CLK_SRC] = &gcc_pcie3x1_0_pipe_clk_src.clkr,
> [GCC_PCIE3X1_1_PIPE_CLK_SRC] = &gcc_pcie3x1_1_pipe_clk_src.clkr,
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