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Message-ID: <20230801174903.hzg3yeugppbxgp7f@mercury.elektranox.org>
Date: Tue, 1 Aug 2023 19:49:03 +0200
From: Sebastian Reichel <sebastian.reichel@...labora.com>
To: Elaine Zhang <zhangqing@...k-chips.com>
Cc: mturquette@...libre.com, sboyd@...nel.org,
kever.yang@...k-chips.com, heiko@...ech.de,
linux-clk@...r.kernel.org, linux-rockchip@...ts.infradead.org,
linux-kernel@...r.kernel.org, huangtao@...k-chips.com
Subject: Re: [PATCH v2 3/3] clk: rockchip: rk3588: Adjust the GATE_LINK
parameter
Hi,
On Tue, Aug 01, 2023 at 03:43:57PM +0800, Elaine Zhang wrote:
> Using Id instead of name, if use name needs to use __clk_lookup().
> But __clk_lookup() is not exported and is not friendly for GKI.
>
> Signed-off-by: Elaine Zhang <zhangqing@...k-chips.com>
> ---
The patch description should mention, that it's also adding the
missing PCLK_VO0GRF and PCLK_VO1GRF entries. Otherwise:
Reviewed-by: Sebastian Reichel <sebastian.reichel@...labora.com>
-- Sebastian
> drivers/clk/rockchip/clk-rk3588.c | 110 ++++++++++++++++--------------
> 1 file changed, 59 insertions(+), 51 deletions(-)
>
> diff --git a/drivers/clk/rockchip/clk-rk3588.c b/drivers/clk/rockchip/clk-rk3588.c
> index 6994165e0395..4135e96f44ee 100644
> --- a/drivers/clk/rockchip/clk-rk3588.c
> +++ b/drivers/clk/rockchip/clk-rk3588.c
> @@ -12,28 +12,6 @@
> #include <dt-bindings/clock/rockchip,rk3588-cru.h>
> #include "clk.h"
>
> -/*
> - * Recent Rockchip SoCs have a new hardware block called Native Interface
> - * Unit (NIU), which gates clocks to devices behind them. These effectively
> - * need two parent clocks.
> - *
> - * Downstream enables the linked clock via runtime PM whenever the gate is
> - * enabled. This implementation uses separate clock nodes for each of the
> - * linked gate clocks, which leaks parts of the clock tree into DT.
> - *
> - * The GATE_LINK macro instead takes the second parent via 'linkname', but
> - * ignores the information. Once the clock framework is ready to handle it, the
> - * information should be passed on here. But since these clocks are required to
> - * access multiple relevant IP blocks, such as PCIe or USB, we mark all linked
> - * clocks critical until a better solution is available. This will waste some
> - * power, but avoids leaking implementation details into DT or hanging the
> - * system.
> - */
> -#define GATE_LINK(_id, cname, pname, linkname, f, o, b, gf) \
> - GATE(_id, cname, pname, f, o, b, gf)
> -#define RK3588_LINKED_CLK CLK_IS_CRITICAL
> -
> -
> #define RK3588_GRF_SOC_STATUS0 0x600
> #define RK3588_PHYREF_ALT_GATE 0xc38
>
> @@ -1456,7 +1434,7 @@ static struct rockchip_clk_branch rk3588_clk_branches[] __initdata = {
> COMPOSITE_NODIV(HCLK_NVM_ROOT, "hclk_nvm_root", mux_200m_100m_50m_24m_p, 0,
> RK3588_CLKSEL_CON(77), 0, 2, MFLAGS,
> RK3588_CLKGATE_CON(31), 0, GFLAGS),
> - COMPOSITE(ACLK_NVM_ROOT, "aclk_nvm_root", gpll_cpll_p, RK3588_LINKED_CLK,
> + COMPOSITE(ACLK_NVM_ROOT, "aclk_nvm_root", gpll_cpll_p, 0,
> RK3588_CLKSEL_CON(77), 7, 1, MFLAGS, 2, 5, DFLAGS,
> RK3588_CLKGATE_CON(31), 1, GFLAGS),
> GATE(ACLK_EMMC, "aclk_emmc", "aclk_nvm_root", 0,
> @@ -1685,13 +1663,13 @@ static struct rockchip_clk_branch rk3588_clk_branches[] __initdata = {
> RK3588_CLKGATE_CON(42), 9, GFLAGS),
>
> /* vdpu */
> - COMPOSITE(ACLK_VDPU_ROOT, "aclk_vdpu_root", gpll_cpll_aupll_p, RK3588_LINKED_CLK,
> + COMPOSITE(ACLK_VDPU_ROOT, "aclk_vdpu_root", gpll_cpll_aupll_p, 0,
> RK3588_CLKSEL_CON(98), 5, 2, MFLAGS, 0, 5, DFLAGS,
> RK3588_CLKGATE_CON(44), 0, GFLAGS),
> COMPOSITE_NODIV(ACLK_VDPU_LOW_ROOT, "aclk_vdpu_low_root", mux_400m_200m_100m_24m_p, 0,
> RK3588_CLKSEL_CON(98), 7, 2, MFLAGS,
> RK3588_CLKGATE_CON(44), 1, GFLAGS),
> - COMPOSITE_NODIV(HCLK_VDPU_ROOT, "hclk_vdpu_root", mux_200m_100m_50m_24m_p, RK3588_LINKED_CLK,
> + COMPOSITE_NODIV(HCLK_VDPU_ROOT, "hclk_vdpu_root", mux_200m_100m_50m_24m_p, 0,
> RK3588_CLKSEL_CON(98), 9, 2, MFLAGS,
> RK3588_CLKGATE_CON(44), 2, GFLAGS),
> COMPOSITE(ACLK_JPEG_DECODER_ROOT, "aclk_jpeg_decoder_root", gpll_cpll_aupll_spll_p, 0,
> @@ -1742,9 +1720,9 @@ static struct rockchip_clk_branch rk3588_clk_branches[] __initdata = {
> COMPOSITE(ACLK_RKVENC0_ROOT, "aclk_rkvenc0_root", gpll_cpll_npll_p, 0,
> RK3588_CLKSEL_CON(102), 7, 2, MFLAGS, 2, 5, DFLAGS,
> RK3588_CLKGATE_CON(47), 1, GFLAGS),
> - GATE(HCLK_RKVENC0, "hclk_rkvenc0", "hclk_rkvenc0_root", RK3588_LINKED_CLK,
> + GATE(HCLK_RKVENC0, "hclk_rkvenc0", "hclk_rkvenc0_root", 0,
> RK3588_CLKGATE_CON(47), 4, GFLAGS),
> - GATE(ACLK_RKVENC0, "aclk_rkvenc0", "aclk_rkvenc0_root", RK3588_LINKED_CLK,
> + GATE(ACLK_RKVENC0, "aclk_rkvenc0", "aclk_rkvenc0_root", 0,
> RK3588_CLKGATE_CON(47), 5, GFLAGS),
> COMPOSITE(CLK_RKVENC0_CORE, "clk_rkvenc0_core", gpll_cpll_aupll_npll_p, 0,
> RK3588_CLKSEL_CON(102), 14, 2, MFLAGS, 9, 5, DFLAGS,
> @@ -1754,10 +1732,10 @@ static struct rockchip_clk_branch rk3588_clk_branches[] __initdata = {
> RK3588_CLKGATE_CON(48), 6, GFLAGS),
>
> /* vi */
> - COMPOSITE(ACLK_VI_ROOT, "aclk_vi_root", gpll_cpll_npll_aupll_spll_p, RK3588_LINKED_CLK,
> + COMPOSITE(ACLK_VI_ROOT, "aclk_vi_root", gpll_cpll_npll_aupll_spll_p, 0,
> RK3588_CLKSEL_CON(106), 5, 3, MFLAGS, 0, 5, DFLAGS,
> RK3588_CLKGATE_CON(49), 0, GFLAGS),
> - COMPOSITE_NODIV(HCLK_VI_ROOT, "hclk_vi_root", mux_200m_100m_50m_24m_p, RK3588_LINKED_CLK,
> + COMPOSITE_NODIV(HCLK_VI_ROOT, "hclk_vi_root", mux_200m_100m_50m_24m_p, 0,
> RK3588_CLKSEL_CON(106), 8, 2, MFLAGS,
> RK3588_CLKGATE_CON(49), 1, GFLAGS),
> COMPOSITE_NODIV(PCLK_VI_ROOT, "pclk_vi_root", mux_100m_50m_24m_p, 0,
> @@ -1929,10 +1907,10 @@ static struct rockchip_clk_branch rk3588_clk_branches[] __initdata = {
> COMPOSITE(ACLK_VOP_ROOT, "aclk_vop_root", gpll_cpll_dmyaupll_npll_spll_p, 0,
> RK3588_CLKSEL_CON(110), 5, 3, MFLAGS, 0, 5, DFLAGS,
> RK3588_CLKGATE_CON(52), 0, GFLAGS),
> - COMPOSITE_NODIV(ACLK_VOP_LOW_ROOT, "aclk_vop_low_root", mux_400m_200m_100m_24m_p, RK3588_LINKED_CLK,
> + COMPOSITE_NODIV(ACLK_VOP_LOW_ROOT, "aclk_vop_low_root", mux_400m_200m_100m_24m_p, 0,
> RK3588_CLKSEL_CON(110), 8, 2, MFLAGS,
> RK3588_CLKGATE_CON(52), 1, GFLAGS),
> - COMPOSITE_NODIV(HCLK_VOP_ROOT, "hclk_vop_root", mux_200m_100m_50m_24m_p, RK3588_LINKED_CLK,
> + COMPOSITE_NODIV(HCLK_VOP_ROOT, "hclk_vop_root", mux_200m_100m_50m_24m_p, 0,
> RK3588_CLKSEL_CON(110), 10, 2, MFLAGS,
> RK3588_CLKGATE_CON(52), 2, GFLAGS),
> COMPOSITE_NODIV(PCLK_VOP_ROOT, "pclk_vop_root", mux_100m_50m_24m_p, 0,
> @@ -2433,26 +2411,56 @@ static struct rockchip_clk_branch rk3588_clk_branches[] __initdata = {
> GATE(ACLK_AV1, "aclk_av1", "aclk_av1_pre", 0,
> RK3588_CLKGATE_CON(68), 2, GFLAGS),
>
> - GATE_LINK(ACLK_ISP1_PRE, "aclk_isp1_pre", "aclk_isp1_root", "aclk_vi_root", 0, RK3588_CLKGATE_CON(26), 6, GFLAGS),
> - GATE_LINK(HCLK_ISP1_PRE, "hclk_isp1_pre", "hclk_isp1_root", "hclk_vi_root", 0, RK3588_CLKGATE_CON(26), 8, GFLAGS),
> - GATE_LINK(HCLK_NVM, "hclk_nvm", "hclk_nvm_root", "aclk_nvm_root", RK3588_LINKED_CLK, RK3588_CLKGATE_CON(31), 2, GFLAGS),
> - GATE_LINK(ACLK_USB, "aclk_usb", "aclk_usb_root", "aclk_vo1usb_top_root", 0, RK3588_CLKGATE_CON(42), 2, GFLAGS),
> - GATE_LINK(HCLK_USB, "hclk_usb", "hclk_usb_root", "hclk_vo1usb_top_root", 0, RK3588_CLKGATE_CON(42), 3, GFLAGS),
> - GATE_LINK(ACLK_JPEG_DECODER_PRE, "aclk_jpeg_decoder_pre", "aclk_jpeg_decoder_root", "aclk_vdpu_root", 0, RK3588_CLKGATE_CON(44), 7, GFLAGS),
> - GATE_LINK(ACLK_VDPU_LOW_PRE, "aclk_vdpu_low_pre", "aclk_vdpu_low_root", "aclk_vdpu_root", 0, RK3588_CLKGATE_CON(44), 5, GFLAGS),
> - GATE_LINK(ACLK_RKVENC1_PRE, "aclk_rkvenc1_pre", "aclk_rkvenc1_root", "aclk_rkvenc0", 0, RK3588_CLKGATE_CON(48), 3, GFLAGS),
> - GATE_LINK(HCLK_RKVENC1_PRE, "hclk_rkvenc1_pre", "hclk_rkvenc1_root", "hclk_rkvenc0", 0, RK3588_CLKGATE_CON(48), 2, GFLAGS),
> - GATE_LINK(HCLK_RKVDEC0_PRE, "hclk_rkvdec0_pre", "hclk_rkvdec0_root", "hclk_vdpu_root", 0, RK3588_CLKGATE_CON(40), 5, GFLAGS),
> - GATE_LINK(ACLK_RKVDEC0_PRE, "aclk_rkvdec0_pre", "aclk_rkvdec0_root", "aclk_vdpu_root", 0, RK3588_CLKGATE_CON(40), 6, GFLAGS),
> - GATE_LINK(HCLK_RKVDEC1_PRE, "hclk_rkvdec1_pre", "hclk_rkvdec1_root", "hclk_vdpu_root", 0, RK3588_CLKGATE_CON(41), 4, GFLAGS),
> - GATE_LINK(ACLK_RKVDEC1_PRE, "aclk_rkvdec1_pre", "aclk_rkvdec1_root", "aclk_vdpu_root", 0, RK3588_CLKGATE_CON(41), 5, GFLAGS),
> - GATE_LINK(ACLK_HDCP0_PRE, "aclk_hdcp0_pre", "aclk_vo0_root", "aclk_vop_low_root", 0, RK3588_CLKGATE_CON(55), 9, GFLAGS),
> - GATE_LINK(HCLK_VO0, "hclk_vo0", "hclk_vo0_root", "hclk_vop_root", 0, RK3588_CLKGATE_CON(55), 5, GFLAGS),
> - GATE_LINK(ACLK_HDCP1_PRE, "aclk_hdcp1_pre", "aclk_hdcp1_root", "aclk_vo1usb_top_root", 0, RK3588_CLKGATE_CON(59), 6, GFLAGS),
> - GATE_LINK(HCLK_VO1, "hclk_vo1", "hclk_vo1_root", "hclk_vo1usb_top_root", 0, RK3588_CLKGATE_CON(59), 9, GFLAGS),
> - GATE_LINK(ACLK_AV1_PRE, "aclk_av1_pre", "aclk_av1_root", "aclk_vdpu_root", 0, RK3588_CLKGATE_CON(68), 1, GFLAGS),
> - GATE_LINK(PCLK_AV1_PRE, "pclk_av1_pre", "pclk_av1_root", "hclk_vdpu_root", 0, RK3588_CLKGATE_CON(68), 4, GFLAGS),
> - GATE_LINK(HCLK_SDIO_PRE, "hclk_sdio_pre", "hclk_sdio_root", "hclk_nvm", 0, RK3588_CLKGATE_CON(75), 1, GFLAGS),
> + /*
> + * Recent Rockchip SoCs have a new hardware block called Native Interface
> + * Unit (NIU), which gates clocks to devices behind them. These effectively
> + * need two parent clocks.
> + */
> + GATE_LINK(ACLK_ISP1_PRE, "aclk_isp1_pre", "aclk_isp1_root", ACLK_VI_ROOT, 0,
> + RK3588_CLKGATE_CON(26), 6, GFLAGS),
> + GATE_LINK(HCLK_ISP1_PRE, "hclk_isp1_pre", "hclk_isp1_root", HCLK_VI_ROOT, 0,
> + RK3588_CLKGATE_CON(26), 8, GFLAGS),
> + GATE_LINK(HCLK_NVM, "hclk_nvm", "hclk_nvm_root", ACLK_NVM_ROOT, 0,
> + RK3588_CLKGATE_CON(31), 2, GFLAGS),
> + GATE_LINK(ACLK_USB, "aclk_usb", "aclk_usb_root", ACLK_VO1USB_TOP_ROOT, 0,
> + RK3588_CLKGATE_CON(42), 2, GFLAGS),
> + GATE_LINK(HCLK_USB, "hclk_usb", "hclk_usb_root", HCLK_VO1USB_TOP_ROOT, 0,
> + RK3588_CLKGATE_CON(42), 3, GFLAGS),
> + GATE_LINK(ACLK_JPEG_DECODER_PRE, "aclk_jpeg_decoder_pre", "aclk_jpeg_decoder_root",
> + ACLK_VDPU_ROOT, 0,
> + RK3588_CLKGATE_CON(44), 7, GFLAGS),
> + GATE_LINK(ACLK_VDPU_LOW_PRE, "aclk_vdpu_low_pre", "aclk_vdpu_low_root", ACLK_VDPU_ROOT, 0,
> + RK3588_CLKGATE_CON(44), 5, GFLAGS),
> + GATE_LINK(ACLK_RKVENC1_PRE, "aclk_rkvenc1_pre", "aclk_rkvenc1_root", ACLK_RKVENC0, 0,
> + RK3588_CLKGATE_CON(48), 3, GFLAGS),
> + GATE_LINK(HCLK_RKVENC1_PRE, "hclk_rkvenc1_pre", "hclk_rkvenc1_root", HCLK_RKVENC0, 0,
> + RK3588_CLKGATE_CON(48), 2, GFLAGS),
> + GATE_LINK(HCLK_RKVDEC0_PRE, "hclk_rkvdec0_pre", "hclk_rkvdec0_root", HCLK_VDPU_ROOT, 0,
> + RK3588_CLKGATE_CON(40), 5, GFLAGS),
> + GATE_LINK(ACLK_RKVDEC0_PRE, "aclk_rkvdec0_pre", "aclk_rkvdec0_root", ACLK_VDPU_ROOT, 0,
> + RK3588_CLKGATE_CON(40), 6, GFLAGS),
> + GATE_LINK(HCLK_RKVDEC1_PRE, "hclk_rkvdec1_pre", "hclk_rkvdec1_root", HCLK_VDPU_ROOT, 0,
> + RK3588_CLKGATE_CON(41), 4, GFLAGS),
> + GATE_LINK(ACLK_RKVDEC1_PRE, "aclk_rkvdec1_pre", "aclk_rkvdec1_root", ACLK_VDPU_ROOT, 0,
> + RK3588_CLKGATE_CON(41), 5, GFLAGS),
> + GATE_LINK(ACLK_HDCP0_PRE, "aclk_hdcp0_pre", "aclk_vo0_root", ACLK_VOP_LOW_ROOT, 0,
> + RK3588_CLKGATE_CON(55), 9, GFLAGS),
> + GATE_LINK(HCLK_VO0, "hclk_vo0", "hclk_vo0_root", HCLK_VOP_ROOT, 0,
> + RK3588_CLKGATE_CON(55), 5, GFLAGS),
> + GATE_LINK(ACLK_HDCP1_PRE, "aclk_hdcp1_pre", "aclk_hdcp1_root", ACLK_VO1USB_TOP_ROOT, 0,
> + RK3588_CLKGATE_CON(59), 6, GFLAGS),
> + GATE_LINK(HCLK_VO1, "hclk_vo1", "hclk_vo1_root", HCLK_VO1USB_TOP_ROOT, 0,
> + RK3588_CLKGATE_CON(59), 9, GFLAGS),
> + GATE_LINK(ACLK_AV1_PRE, "aclk_av1_pre", "aclk_av1_root", ACLK_VDPU_ROOT, 0,
> + RK3588_CLKGATE_CON(68), 1, GFLAGS),
> + GATE_LINK(PCLK_AV1_PRE, "pclk_av1_pre", "pclk_av1_root", HCLK_VDPU_ROOT, 0,
> + RK3588_CLKGATE_CON(68), 4, GFLAGS),
> + GATE_LINK(HCLK_SDIO_PRE, "hclk_sdio_pre", "hclk_sdio_root", HCLK_NVM, 0,
> + RK3588_CLKGATE_CON(75), 1, GFLAGS),
> + GATE_LINK(PCLK_VO0GRF, "pclk_vo0grf", "pclk_vo0_root", HCLK_VO0, CLK_IGNORE_UNUSED,
> + RK3588_CLKGATE_CON(55), 10, GFLAGS),
> + GATE_LINK(PCLK_VO1GRF, "pclk_vo1grf", "pclk_vo1_root", HCLK_VO1, CLK_IGNORE_UNUSED,
> + RK3588_CLKGATE_CON(59), 12, GFLAGS),
> };
>
> static void __init rk3588_clk_init(struct device_node *np)
> --
> 2.17.1
>
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