From: abhinavk@codeaurora.org
To: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Cc: Rob Clark <robdclark@gmail.com>, Sean Paul <sean@poorly.run>,
Jonathan Marek <jonathan@marek.ca>,
Michael Turquette <mturquette@baylibre.com>,
Stephen Boyd <sboyd@kernel.org>,
linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org,
David Airlie <airlied@linux.ie>, Daniel Vetter <daniel@ffwll.ch>,
freedreno@lists.freedesktop.org, linux-clk@vger.kernel.org
Subject: Re: [Freedreno] [PATCH v3 24/25] drm/msm/dsi: inline msm_dsi_phy_set_src_pll
Date: Mon, 29 Mar 2021 20:34:05 -0700 [thread overview]
Message-ID: <bec91de2af142b171bfcedd33dbf4dcf@codeaurora.org> (raw)
In-Reply-To: <20210327110305.3289784-25-dmitry.baryshkov@linaro.org>
On 2021-03-27 04:03, Dmitry Baryshkov wrote:
> The src_truthtable config is not used for some of phys, which use other
> means of configuring the master/slave usecases. Inline this function
> with the goal of removing src_pll_id argument in the next commit.
>
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
> ---
> drivers/gpu/drm/msm/dsi/phy/dsi_phy.c | 17 -----------------
> drivers/gpu/drm/msm/dsi/phy/dsi_phy.h | 8 --------
> drivers/gpu/drm/msm/dsi/phy/dsi_phy_10nm.c | 2 --
> drivers/gpu/drm/msm/dsi/phy/dsi_phy_14nm.c | 13 +++++++------
> drivers/gpu/drm/msm/dsi/phy/dsi_phy_20nm.c | 11 +++++++----
> drivers/gpu/drm/msm/dsi/phy/dsi_phy_28nm.c | 13 +++++++------
> drivers/gpu/drm/msm/dsi/phy/dsi_phy_28nm_8960.c | 1 -
> drivers/gpu/drm/msm/dsi/phy/dsi_phy_7nm.c | 2 --
> 8 files changed, 21 insertions(+), 46 deletions(-)
>
> diff --git a/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c
> b/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c
> index 74cc11c84d71..56f5134e3933 100644
> --- a/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c
> +++ b/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c
> @@ -461,23 +461,6 @@ int msm_dsi_dphy_timing_calc_v4(struct
> msm_dsi_dphy_timing *timing,
> return 0;
> }
>
> -void msm_dsi_phy_set_src_pll(struct msm_dsi_phy *phy, int pll_id, u32
> reg,
> - u32 bit_mask)
> -{
> - int phy_id = phy->id;
> - u32 val;
> -
> - if ((phy_id >= DSI_MAX) || (pll_id >= DSI_MAX))
> - return;
> -
> - val = dsi_phy_read(phy->base + reg);
> -
> - if (phy->cfg->src_pll_truthtable[phy_id][pll_id])
> - dsi_phy_write(phy->base + reg, val | bit_mask);
> - else
> - dsi_phy_write(phy->base + reg, val & (~bit_mask));
> -}
> -
> static int dsi_phy_regulator_init(struct msm_dsi_phy *phy)
> {
> struct regulator_bulk_data *s = phy->supplies;
> diff --git a/drivers/gpu/drm/msm/dsi/phy/dsi_phy.h
> b/drivers/gpu/drm/msm/dsi/phy/dsi_phy.h
> index 8e828c5ca8f4..3b207cf9f6b4 100644
> --- a/drivers/gpu/drm/msm/dsi/phy/dsi_phy.h
> +++ b/drivers/gpu/drm/msm/dsi/phy/dsi_phy.h
> @@ -33,12 +33,6 @@ struct msm_dsi_phy_cfg {
> unsigned long min_pll_rate;
> unsigned long max_pll_rate;
>
> - /*
> - * Each cell {phy_id, pll_id} of the truth table indicates
> - * if the source PLL selection bit should be set for each PHY.
> - * Fill default H/W values in illegal cells, eg. cell {0, 1}.
> - */
> - bool src_pll_truthtable[DSI_MAX][DSI_MAX];
> const resource_size_t io_start[DSI_MAX];
> const int num_dsi_phy;
> const int quirks;
> @@ -121,7 +115,5 @@ int msm_dsi_dphy_timing_calc_v3(struct
> msm_dsi_dphy_timing *timing,
> struct msm_dsi_phy_clk_request *clk_req);
> int msm_dsi_dphy_timing_calc_v4(struct msm_dsi_dphy_timing *timing,
> struct msm_dsi_phy_clk_request *clk_req);
> -void msm_dsi_phy_set_src_pll(struct msm_dsi_phy *phy, int pll_id, u32
> reg,
> - u32 bit_mask);
>
> #endif /* __DSI_PHY_H__ */
> diff --git a/drivers/gpu/drm/msm/dsi/phy/dsi_phy_10nm.c
> b/drivers/gpu/drm/msm/dsi/phy/dsi_phy_10nm.c
> index 1fbb54f4df98..04535ccd11ef 100644
> --- a/drivers/gpu/drm/msm/dsi/phy/dsi_phy_10nm.c
> +++ b/drivers/gpu/drm/msm/dsi/phy/dsi_phy_10nm.c
> @@ -919,7 +919,6 @@ static void dsi_10nm_phy_disable(struct msm_dsi_phy
> *phy)
> }
>
> const struct msm_dsi_phy_cfg dsi_phy_10nm_cfgs = {
> - .src_pll_truthtable = { {false, false}, {true, false} },
> .has_phy_lane = true,
> .reg_cfg = {
> .num = 1,
> @@ -941,7 +940,6 @@ const struct msm_dsi_phy_cfg dsi_phy_10nm_cfgs = {
> };
>
> const struct msm_dsi_phy_cfg dsi_phy_10nm_8998_cfgs = {
> - .src_pll_truthtable = { {false, false}, {true, false} },
> .has_phy_lane = true,
> .reg_cfg = {
> .num = 1,
> diff --git a/drivers/gpu/drm/msm/dsi/phy/dsi_phy_14nm.c
> b/drivers/gpu/drm/msm/dsi/phy/dsi_phy_14nm.c
> index d08ad0c632b4..7a87bed71e36 100644
> --- a/drivers/gpu/drm/msm/dsi/phy/dsi_phy_14nm.c
> +++ b/drivers/gpu/drm/msm/dsi/phy/dsi_phy_14nm.c
> @@ -947,6 +947,7 @@ static int dsi_14nm_phy_enable(struct msm_dsi_phy
> *phy, int src_pll_id,
> int ret;
> void __iomem *base = phy->base;
> void __iomem *lane_base = phy->lane_base;
> + u32 glbl_test_ctrl;
>
> if (msm_dsi_dphy_timing_calc_v2(timing, clk_req)) {
> DRM_DEV_ERROR(&phy->pdev->dev,
> @@ -994,10 +995,12 @@ static int dsi_14nm_phy_enable(struct
> msm_dsi_phy *phy, int src_pll_id,
> udelay(100);
> dsi_phy_write(base + REG_DSI_14nm_PHY_CMN_CTRL_1, 0x00);
>
> - msm_dsi_phy_set_src_pll(phy, src_pll_id,
> - REG_DSI_14nm_PHY_CMN_GLBL_TEST_CTRL,
> - DSI_14nm_PHY_CMN_GLBL_TEST_CTRL_BITCLK_HS_SEL);
> -
> + glbl_test_ctrl = dsi_phy_read(base +
> REG_DSI_14nm_PHY_CMN_GLBL_TEST_CTRL);
> + if (phy->id == DSI_1 && src_pll_id == DSI_0)
> + glbl_test_ctrl |= DSI_14nm_PHY_CMN_GLBL_TEST_CTRL_BITCLK_HS_SEL;
> + else
> + glbl_test_ctrl &= ~DSI_14nm_PHY_CMN_GLBL_TEST_CTRL_BITCLK_HS_SEL;
> + dsi_phy_write(base + REG_DSI_14nm_PHY_CMN_GLBL_TEST_CTRL,
> glbl_test_ctrl);
> ret = dsi_14nm_set_usecase(phy);
> if (ret) {
> DRM_DEV_ERROR(&phy->pdev->dev, "%s: set pll usecase failed, %d\n",
> @@ -1021,7 +1024,6 @@ static void dsi_14nm_phy_disable(struct
> msm_dsi_phy *phy)
> }
>
> const struct msm_dsi_phy_cfg dsi_phy_14nm_cfgs = {
> - .src_pll_truthtable = { {false, false}, {true, false} },
> .has_phy_lane = true,
> .reg_cfg = {
> .num = 1,
> @@ -1043,7 +1045,6 @@ const struct msm_dsi_phy_cfg dsi_phy_14nm_cfgs =
> {
> };
>
> const struct msm_dsi_phy_cfg dsi_phy_14nm_660_cfgs = {
> - .src_pll_truthtable = { {false, false}, {true, false} },
> .has_phy_lane = true,
> .reg_cfg = {
> .num = 1,
> diff --git a/drivers/gpu/drm/msm/dsi/phy/dsi_phy_20nm.c
> b/drivers/gpu/drm/msm/dsi/phy/dsi_phy_20nm.c
> index 5e73f811d645..f5b88c85a8fc 100644
> --- a/drivers/gpu/drm/msm/dsi/phy/dsi_phy_20nm.c
> +++ b/drivers/gpu/drm/msm/dsi/phy/dsi_phy_20nm.c
> @@ -70,6 +70,7 @@ static int dsi_20nm_phy_enable(struct msm_dsi_phy
> *phy, int src_pll_id,
> int i;
> void __iomem *base = phy->base;
> u32 cfg_4[4] = {0x20, 0x40, 0x20, 0x00};
> + u32 val;
>
> DBG("");
>
> @@ -83,9 +84,12 @@ static int dsi_20nm_phy_enable(struct msm_dsi_phy
> *phy, int src_pll_id,
>
> dsi_phy_write(base + REG_DSI_20nm_PHY_STRENGTH_0, 0xff);
>
> - msm_dsi_phy_set_src_pll(phy, src_pll_id,
> - REG_DSI_20nm_PHY_GLBL_TEST_CTRL,
> - DSI_20nm_PHY_GLBL_TEST_CTRL_BITCLK_HS_SEL);
> + val = dsi_phy_read(base + REG_DSI_20nm_PHY_GLBL_TEST_CTRL);
> + if (src_pll_id == DSI_1)
> + val |= DSI_20nm_PHY_GLBL_TEST_CTRL_BITCLK_HS_SEL;
> + else
> + val &= ~DSI_20nm_PHY_GLBL_TEST_CTRL_BITCLK_HS_SEL;
> + dsi_phy_write(base + REG_DSI_20nm_PHY_GLBL_TEST_CTRL, val);
>
> for (i = 0; i < 4; i++) {
> dsi_phy_write(base + REG_DSI_20nm_PHY_LN_CFG_3(i),
> @@ -125,7 +129,6 @@ static void dsi_20nm_phy_disable(struct msm_dsi_phy
> *phy)
> }
>
> const struct msm_dsi_phy_cfg dsi_phy_20nm_cfgs = {
> - .src_pll_truthtable = { {false, true}, {false, true} },
> .has_phy_regulator = true,
> .reg_cfg = {
> .num = 2,
> diff --git a/drivers/gpu/drm/msm/dsi/phy/dsi_phy_28nm.c
> b/drivers/gpu/drm/msm/dsi/phy/dsi_phy_28nm.c
> index 0bcea3f3eca3..9f83ab90d093 100644
> --- a/drivers/gpu/drm/msm/dsi/phy/dsi_phy_28nm.c
> +++ b/drivers/gpu/drm/msm/dsi/phy/dsi_phy_28nm.c
> @@ -704,6 +704,7 @@ static int dsi_28nm_phy_enable(struct msm_dsi_phy
> *phy, int src_pll_id,
> struct msm_dsi_dphy_timing *timing = &phy->timing;
> int i;
> void __iomem *base = phy->base;
> + u32 val;
>
> DBG("");
>
> @@ -743,9 +744,12 @@ static int dsi_28nm_phy_enable(struct msm_dsi_phy
> *phy, int src_pll_id,
>
> dsi_phy_write(base + REG_DSI_28nm_PHY_CTRL_0, 0x5f);
>
> - msm_dsi_phy_set_src_pll(phy, src_pll_id,
> - REG_DSI_28nm_PHY_GLBL_TEST_CTRL,
> - DSI_28nm_PHY_GLBL_TEST_CTRL_BITCLK_HS_SEL);
> + val = dsi_phy_read(base + REG_DSI_28nm_PHY_GLBL_TEST_CTRL);
> + if (phy->id == DSI_1 && src_pll_id == DSI_0)
> + val &= ~DSI_28nm_PHY_GLBL_TEST_CTRL_BITCLK_HS_SEL;
> + else
> + val |= DSI_28nm_PHY_GLBL_TEST_CTRL_BITCLK_HS_SEL;
> + dsi_phy_write(base + REG_DSI_28nm_PHY_GLBL_TEST_CTRL, val);
>
> return 0;
> }
> @@ -763,7 +767,6 @@ static void dsi_28nm_phy_disable(struct msm_dsi_phy
> *phy)
> }
>
> const struct msm_dsi_phy_cfg dsi_phy_28nm_hpm_cfgs = {
> - .src_pll_truthtable = { {true, true}, {false, true} },
> .has_phy_regulator = true,
> .reg_cfg = {
> .num = 1,
> @@ -785,7 +788,6 @@ const struct msm_dsi_phy_cfg dsi_phy_28nm_hpm_cfgs
> = {
> };
>
> const struct msm_dsi_phy_cfg dsi_phy_28nm_hpm_famb_cfgs = {
> - .src_pll_truthtable = { {true, true}, {false, true} },
> .has_phy_regulator = true,
> .reg_cfg = {
> .num = 1,
> @@ -807,7 +809,6 @@ const struct msm_dsi_phy_cfg
> dsi_phy_28nm_hpm_famb_cfgs = {
> };
>
> const struct msm_dsi_phy_cfg dsi_phy_28nm_lp_cfgs = {
> - .src_pll_truthtable = { {true, true}, {true, true} },
> .has_phy_regulator = true,
> .reg_cfg = {
> .num = 1,
The src_pll_truthtable for dsi_phy_28nm_lp_cfgs has all entries as true,
while the other
28nm_***_cfgs dont. So wouldnt this below logic end up breaking
dsi_phy_28nm_lp_cfgs?
> + if (phy->id == DSI_1 && src_pll_id == DSI_0)
> + val &= ~DSI_28nm_PHY_GLBL_TEST_CTRL_BITCLK_HS_SEL;
> + else
> + val |= DSI_28nm_PHY_GLBL_TEST_CTRL_BITCLK_HS_SEL;
> + dsi_phy_write(base + REG_DSI_28nm_PHY_GLBL_TEST_CTRL, val);
If so, I think we can leave it in cfg itself since the 28nm phy driver
is common and is managed
using different config to differentiate the hpm, lp and hpn_famb
variants.
> diff --git a/drivers/gpu/drm/msm/dsi/phy/dsi_phy_28nm_8960.c
> b/drivers/gpu/drm/msm/dsi/phy/dsi_phy_28nm_8960.c
> index 9ddd0adccce3..d2bfe43c9ef1 100644
> --- a/drivers/gpu/drm/msm/dsi/phy/dsi_phy_28nm_8960.c
> +++ b/drivers/gpu/drm/msm/dsi/phy/dsi_phy_28nm_8960.c
> @@ -642,7 +642,6 @@ static void dsi_28nm_phy_disable(struct msm_dsi_phy
> *phy)
> }
>
> const struct msm_dsi_phy_cfg dsi_phy_28nm_8960_cfgs = {
> - .src_pll_truthtable = { {true, true}, {false, true} },
> .has_phy_regulator = true,
> .reg_cfg = {
> .num = 1,
> diff --git a/drivers/gpu/drm/msm/dsi/phy/dsi_phy_7nm.c
> b/drivers/gpu/drm/msm/dsi/phy/dsi_phy_7nm.c
> index ce6ae2fba993..619998506b78 100644
> --- a/drivers/gpu/drm/msm/dsi/phy/dsi_phy_7nm.c
> +++ b/drivers/gpu/drm/msm/dsi/phy/dsi_phy_7nm.c
> @@ -955,7 +955,6 @@ static void dsi_7nm_phy_disable(struct msm_dsi_phy
> *phy)
> }
>
> const struct msm_dsi_phy_cfg dsi_phy_7nm_cfgs = {
> - .src_pll_truthtable = { {false, false}, {true, false} },
> .has_phy_lane = true,
> .reg_cfg = {
> .num = 1,
> @@ -978,7 +977,6 @@ const struct msm_dsi_phy_cfg dsi_phy_7nm_cfgs = {
> };
>
> const struct msm_dsi_phy_cfg dsi_phy_7nm_8150_cfgs = {
> - .src_pll_truthtable = { {false, false}, {true, false} },
> .has_phy_lane = true,
> .reg_cfg = {
> .num = 1,
next prev parent reply other threads:[~2021-03-30 3:35 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-27 11:02 [PATCH v3 00/25] drm/msm/dsi: refactor MSM DSI PHY/PLL drivers Dmitry Baryshkov
2021-03-27 11:02 ` [PATCH v3 01/25] clk: fixed: add devm helper for clk_hw_register_fixed_factor() Dmitry Baryshkov
2021-03-29 21:55 ` abhinavk
2021-03-27 11:02 ` [PATCH v3 02/25] clk: mux: provide devm_clk_hw_register_mux() Dmitry Baryshkov
2021-03-30 0:46 ` Stephen Boyd
2021-03-27 11:02 ` [PATCH v3 03/25] clk: divider: add devm_clk_hw_register_divider Dmitry Baryshkov
2021-03-30 0:46 ` Stephen Boyd
2021-03-27 11:02 ` [PATCH v3 04/25] drm/msm/dsi: replace PHY's init callback with configurable data Dmitry Baryshkov
2021-03-27 11:02 ` [PATCH v3 06/25] drm/msm/dsi: drop multiple pll enable_seq support Dmitry Baryshkov
2021-03-27 11:02 ` [PATCH v3 07/25] drm/msm/dsi: move all PLL callbacks into PHY config struct Dmitry Baryshkov
2021-03-27 11:02 ` [PATCH v3 08/25] drm/msm/dsi: drop global msm_dsi_phy_type enumaration Dmitry Baryshkov
2021-03-27 11:02 ` [PATCH v3 09/25] drm/msm/dsi: move min/max PLL rate to phy config Dmitry Baryshkov
2021-03-27 11:02 ` [PATCH v3 10/25] drm/msm/dsi: remove msm_dsi_pll_set_usecase Dmitry Baryshkov
2021-03-27 11:02 ` [PATCH v3 11/25] drm/msm/dsi: push provided clocks handling into a generic code Dmitry Baryshkov
2021-03-29 22:12 ` [Freedreno] " abhinavk
2021-03-27 11:02 ` [PATCH v3 12/25] drm/msm/dsi: use devm_clk_*register to registe DSI PHY clocks Dmitry Baryshkov
2021-03-29 23:33 ` [Freedreno] " abhinavk
2021-03-30 0:49 ` Stephen Boyd
2021-03-27 11:02 ` [PATCH v3 13/25] drm/msm/dsi: use devm_of_clk_add_hw_provider Dmitry Baryshkov
2021-03-29 23:43 ` [Freedreno] " abhinavk
2021-03-30 0:50 ` Stephen Boyd
2021-03-27 11:02 ` [PATCH v3 14/25] drm/msm/dsi: make save/restore_state phy-level functions Dmitry Baryshkov
2021-03-29 23:51 ` [Freedreno] " abhinavk
2021-03-27 11:02 ` [PATCH v3 15/25] drm/msm/dsi: drop vco_delay setting from 7nm, 10nm, 14nm drivers Dmitry Baryshkov
2021-03-30 0:01 ` [Freedreno] " abhinavk
2021-03-27 11:02 ` [PATCH v3 16/25] drm/msm/dpu: simplify vco_delay handling in dsi_phy_28nm driver Dmitry Baryshkov
2021-03-30 0:03 ` [Freedreno] " abhinavk
2021-03-27 11:02 ` [PATCH v3 17/25] drm/msi/dsi: inline msm_dsi_pll_helper_clk_prepare/unprepare Dmitry Baryshkov
2021-03-30 0:50 ` [Freedreno] " abhinavk
2021-03-27 11:02 ` [PATCH v3 18/25] drm/msm/dsi: make save_state/restore_state callbacks accept msm_dsi_phy Dmitry Baryshkov
2021-03-30 3:09 ` abhinavk
2021-03-27 11:02 ` [PATCH v3 19/25] drm/msm/dsi: drop msm_dsi_pll abstracton Dmitry Baryshkov
2021-03-30 3:13 ` [Freedreno] " abhinavk
2021-03-30 3:35 ` abhinavk
2021-03-27 11:03 ` [PATCH v3 20/25] drm/msm/dsi: drop PLL accessor functions Dmitry Baryshkov
2021-03-30 3:16 ` [Freedreno] " abhinavk
2021-03-27 11:03 ` [PATCH v3 21/25] drm/msm/dsi: move ioremaps to dsi_phy_driver_probe Dmitry Baryshkov
2021-03-30 3:18 ` [Freedreno] " abhinavk
2021-03-27 11:03 ` [PATCH v3 22/25] drm/msm/dsi: remove duplicate fields from dsi_pll_Nnm instances Dmitry Baryshkov
2021-03-30 3:23 ` abhinavk
2021-03-27 11:03 ` [PATCH v3 23/25] drm/msm/dsi: remove temp data from global pll structure Dmitry Baryshkov
2021-03-30 3:26 ` [Freedreno] " abhinavk
2021-03-30 15:23 ` Dmitry Baryshkov
2021-03-27 11:03 ` [PATCH v3 24/25] drm/msm/dsi: inline msm_dsi_phy_set_src_pll Dmitry Baryshkov
2021-03-30 3:34 ` abhinavk [this message]
2021-03-30 13:42 ` [Freedreno] " Dmitry Baryshkov
2021-03-30 17:44 ` abhinavk
2021-03-27 11:03 ` [PATCH v3 25/25] drm/msm/dsi: stop passing src_pll_id to the phy_enable call Dmitry Baryshkov
2021-03-30 19:29 ` [Freedreno] " abhinavk
2021-03-30 1:31 ` [PATCH v3 00/25] drm/msm/dsi: refactor MSM DSI PHY/PLL drivers Stephen Boyd
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