| Message ID | 1461150414-29638-5-git-send-email-zhengxing@rock-chips.com (mailing list archive) |
|---|---|
| State | Not Applicable |
| Headers | show |
Am Mittwoch, 20. April 2016, 19:06:52 schrieb Xing Zheng: > We need to declare that we enable all NOCs which are critical > clocks always and clearly and explicitly show that we have enabled > them at clk_summary. > > We need to add some has been verified and required critical clocks > in the development process. > > And the pclk_perilp1_noc is also add CLK_IGNORE_UNUSED flag. > > Signed-off-by: Xing Zheng <zhengxing@rock-chips.com> > --- > > drivers/clk/rockchip/clk-rk3399.c | 72 > +++++++++++++++++++++++++++++++------ 1 file changed, 62 insertions(+), 10 > deletions(-) > > diff --git a/drivers/clk/rockchip/clk-rk3399.c > b/drivers/clk/rockchip/clk-rk3399.c index 232ea68..1da4fe1 100644 > --- a/drivers/clk/rockchip/clk-rk3399.c > +++ b/drivers/clk/rockchip/clk-rk3399.c > @@ -1043,7 +1043,7 @@ static struct rockchip_clk_branch > rk3399_clk_branches[] __initdata = { GATE(PCLK_SPI2, "pclk_spi2", > "pclk_perilp1", 0, RK3399_CLKGATE_CON(23), 12, GFLAGS), GATE(PCLK_SPI4, > "pclk_spi4", "pclk_perilp1", 0, RK3399_CLKGATE_CON(23), 13, GFLAGS), > GATE(PCLK_PERIHP_GRF, "pclk_perilp_sgrf", "pclk_perilp1", 0, > RK3399_CLKGATE_CON(24), 13, GFLAGS), > - GATE(0, "pclk_perilp1_noc", > "pclk_perilp1", 0, RK3399_CLKGATE_CON(25), 10, GFLAGS), > + GATE(0, > "pclk_perilp1_noc", "pclk_perilp1", CLK_IGNORE_UNUSED, > RK3399_CLKGATE_CON(25), 10, GFLAGS), why do you think you need a CLK_IGNORE_UNUSED when you have pclk_perilp1_noc in the list of critical clocks below already? Aka as critical clock, it will stay enabled anyway. > > /* saradc */ > COMPOSITE_NOMUX(SCLK_SARADC, "clk_saradc", "xin24m", 0, > @@ -1464,33 +1464,85 @@ static struct rockchip_clk_branch > rk3399_clk_pmu_branches[] __initdata = { }; > > static const char *const rk3399_cru_critical_clocks[] __initconst = { > - "aclk_cci_pre", > + /* > + * We need to declare that we enable all NOCs which are critical clocks > + * always and clearly and explicitly show that we have enabled them at > + * clk_summary. > + */ I think that comment is not really helping here to explain the background. Also, one thing I'd really like to know is what a NOC actually is. I know it's related to the interconnect, but so far I haven't found anything explaining the acronym. Heiko > + "aclk_usb3_noc", > + "aclk_gmac_noc", > + "pclk_gmac_noc", > + "pclk_center_main_noc", > + "aclk_cci_noc0", > + "aclk_cci_noc1", > + "clk_dbg_noc", > + "hclk_vcodec_noc", > + "aclk_vcodec_noc", > + "hclk_vdu_noc", > + "aclk_vdu_noc", > + "hclk_iep_noc", > + "aclk_iep_noc", > + "hclk_rga_noc", > + "aclk_rga_noc", > + "aclk_center_main_noc", > + "aclk_center_peri_noc", > + "aclk_perihp_noc", > + "hclk_perihp_noc", > + "pclk_perihp_noc", > + "hclk_sdmmc_noc", > + "aclk_emmc_noc", > + "aclk_perilp0_noc", > + "hclk_perilp0_noc", > + "hclk_m0_perilp_noc", > + "hclk_perilp1_noc", > + "hclk_sdio_noc", > + "hclk_sdioaudio_noc", > + "pclk_perilp1_noc", > + "aclk_vio_noc", > + "aclk_hdcp_noc", > + "hclk_hdcp_noc", > + "pclk_hdcp_noc", > + "pclk_edp_noc", > + "aclk_vop0_noc", > + "hclk_vop0_noc", > + "aclk_vop1_noc", > + "hclk_vop1_noc", > + "aclk_isp0_noc", > + "hclk_isp0_noc", > + "aclk_isp1_noc", > + "hclk_isp1_noc", > + "aclk_gic_noc", > + > + /* other critical clocks */ > "pclk_perilp0", > "pclk_perilp0", > "hclk_perilp0", > - "hclk_perilp0_noc", > "pclk_perilp1", > - "pclk_perilp1_noc", > "pclk_perihp", > - "pclk_perihp_noc", > "hclk_perihp", > "aclk_perihp", > - "aclk_perihp_noc", > "aclk_perilp0", > - "aclk_perilp0_noc", > "hclk_perilp1", > - "hclk_perilp1_noc", > - "aclk_dmac0_perilp", > - "gpll_hclk_perilp1_src", > + "aclk_dmac1_perilp", > "gpll_aclk_perilp0_src", > "gpll_aclk_perihp_src", > }; > > static const char *const rk3399_pmucru_critical_clocks[] __initconst = { > + /* > + * We need to declare that we enable all NOCs which are critical clocks > + * always and clearly and explicitly show that we have enabled them at > + * clk_summary. > + */ > + "pclk_noc_pmu", > + "hclk_noc_pmu", > + > + /* other critical clocks */ > "ppll", > "pclk_pmu_src", > "fclk_cm0s_src_pmu", > "clk_timer_src_pmu", > + "pclk_rkpwm_pmu", > }; > > static void __init rk3399_clk_init(struct device_node *np) -- To unsubscribe from this list: send the line "unsubscribe linux-clk" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/drivers/clk/rockchip/clk-rk3399.c b/drivers/clk/rockchip/clk-rk3399.c index 232ea68..1da4fe1 100644 --- a/drivers/clk/rockchip/clk-rk3399.c +++ b/drivers/clk/rockchip/clk-rk3399.c @@ -1043,7 +1043,7 @@ static struct rockchip_clk_branch rk3399_clk_branches[] __initdata = { GATE(PCLK_SPI2, "pclk_spi2", "pclk_perilp1", 0, RK3399_CLKGATE_CON(23), 12, GFLAGS), GATE(PCLK_SPI4, "pclk_spi4", "pclk_perilp1", 0, RK3399_CLKGATE_CON(23), 13, GFLAGS), GATE(PCLK_PERIHP_GRF, "pclk_perilp_sgrf", "pclk_perilp1", 0, RK3399_CLKGATE_CON(24), 13, GFLAGS), - GATE(0, "pclk_perilp1_noc", "pclk_perilp1", 0, RK3399_CLKGATE_CON(25), 10, GFLAGS), + GATE(0, "pclk_perilp1_noc", "pclk_perilp1", CLK_IGNORE_UNUSED, RK3399_CLKGATE_CON(25), 10, GFLAGS), /* saradc */ COMPOSITE_NOMUX(SCLK_SARADC, "clk_saradc", "xin24m", 0, @@ -1464,33 +1464,85 @@ static struct rockchip_clk_branch rk3399_clk_pmu_branches[] __initdata = { }; static const char *const rk3399_cru_critical_clocks[] __initconst = { - "aclk_cci_pre", + /* + * We need to declare that we enable all NOCs which are critical clocks + * always and clearly and explicitly show that we have enabled them at + * clk_summary. + */ + "aclk_usb3_noc", + "aclk_gmac_noc", + "pclk_gmac_noc", + "pclk_center_main_noc", + "aclk_cci_noc0", + "aclk_cci_noc1", + "clk_dbg_noc", + "hclk_vcodec_noc", + "aclk_vcodec_noc", + "hclk_vdu_noc", + "aclk_vdu_noc", + "hclk_iep_noc", + "aclk_iep_noc", + "hclk_rga_noc", + "aclk_rga_noc", + "aclk_center_main_noc", + "aclk_center_peri_noc", + "aclk_perihp_noc", + "hclk_perihp_noc", + "pclk_perihp_noc", + "hclk_sdmmc_noc", + "aclk_emmc_noc", + "aclk_perilp0_noc", + "hclk_perilp0_noc", + "hclk_m0_perilp_noc", + "hclk_perilp1_noc", + "hclk_sdio_noc", + "hclk_sdioaudio_noc", + "pclk_perilp1_noc", + "aclk_vio_noc", + "aclk_hdcp_noc", + "hclk_hdcp_noc", + "pclk_hdcp_noc", + "pclk_edp_noc", + "aclk_vop0_noc", + "hclk_vop0_noc", + "aclk_vop1_noc", + "hclk_vop1_noc", + "aclk_isp0_noc", + "hclk_isp0_noc", + "aclk_isp1_noc", + "hclk_isp1_noc", + "aclk_gic_noc", + + /* other critical clocks */ "pclk_perilp0", "pclk_perilp0", "hclk_perilp0", - "hclk_perilp0_noc", "pclk_perilp1", - "pclk_perilp1_noc", "pclk_perihp", - "pclk_perihp_noc", "hclk_perihp", "aclk_perihp", - "aclk_perihp_noc", "aclk_perilp0", - "aclk_perilp0_noc", "hclk_perilp1", - "hclk_perilp1_noc", - "aclk_dmac0_perilp", - "gpll_hclk_perilp1_src", + "aclk_dmac1_perilp", "gpll_aclk_perilp0_src", "gpll_aclk_perihp_src", }; static const char *const rk3399_pmucru_critical_clocks[] __initconst = { + /* + * We need to declare that we enable all NOCs which are critical clocks + * always and clearly and explicitly show that we have enabled them at + * clk_summary. + */ + "pclk_noc_pmu", + "hclk_noc_pmu", + + /* other critical clocks */ "ppll", "pclk_pmu_src", "fclk_cm0s_src_pmu", "clk_timer_src_pmu", + "pclk_rkpwm_pmu", }; static void __init rk3399_clk_init(struct device_node *np)
We need to declare that we enable all NOCs which are critical clocks always and clearly and explicitly show that we have enabled them at clk_summary. We need to add some has been verified and required critical clocks in the development process. And the pclk_perilp1_noc is also add CLK_IGNORE_UNUSED flag. Signed-off-by: Xing Zheng <zhengxing@rock-chips.com> --- drivers/clk/rockchip/clk-rk3399.c | 72 +++++++++++++++++++++++++++++++------ 1 file changed, 62 insertions(+), 10 deletions(-)