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From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     linux-kernel@vger.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        stable@vger.kernel.org,
        Enric Balletbo i Serra <enric.balletbo@collabora.com>,
        Hsin-Yi Wang <hsinyi@chromium.org>,
        Matthias Brugger <matthias.bgg@gmail.com>
Subject: [PATCH 5.12 349/363] soc: mediatek: pm-domains: Add a meaningful power domain name
Date:   Mon, 17 May 2021 16:03:35 +0200
Message-Id: <20210517140314.396762237@linuxfoundation.org>
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From: Enric Balletbo i Serra <enric.balletbo@collabora.com>

commit 022b02b4505ecea5eda02b18683531e49f7d8eb7 upstream.

Add the power domains names to the power domain struct so we
have meaningful name for every power domain. This also removes the
following debugfs error message.

  [    2.242068] debugfs: Directory 'power-domain' with parent 'pm_genpd' already present!
  [    2.249949] debugfs: Directory 'power-domain' with parent 'pm_genpd' already present!
  [    2.257784] debugfs: Directory 'power-domain' with parent 'pm_genpd' already present!
  ...

Fixes: 59b644b01cf4 ("soc: mediatek: Add MediaTek SCPSYS power domains")
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Reviewed-by: Hsin-Yi Wang <hsinyi@chromium.org>
Link: https://lore.kernel.org/r/20210225175000.824661-1-enric.balletbo@collabora.com
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/soc/mediatek/mt8173-pm-domains.h |   10 ++++++++++
 drivers/soc/mediatek/mtk-pm-domains.c    |    6 +++++-
 drivers/soc/mediatek/mtk-pm-domains.h    |    2 ++
 3 files changed, 17 insertions(+), 1 deletion(-)

--- a/drivers/soc/mediatek/mt8173-pm-domains.h
+++ b/drivers/soc/mediatek/mt8173-pm-domains.h
@@ -12,24 +12,28 @@
 
 static const struct scpsys_domain_data scpsys_domain_data_mt8173[] = {
 	[MT8173_POWER_DOMAIN_VDEC] = {
+		.name = "vdec",
 		.sta_mask = PWR_STATUS_VDEC,
 		.ctl_offs = SPM_VDE_PWR_CON,
 		.sram_pdn_bits = GENMASK(11, 8),
 		.sram_pdn_ack_bits = GENMASK(12, 12),
 	},
 	[MT8173_POWER_DOMAIN_VENC] = {
+		.name = "venc",
 		.sta_mask = PWR_STATUS_VENC,
 		.ctl_offs = SPM_VEN_PWR_CON,
 		.sram_pdn_bits = GENMASK(11, 8),
 		.sram_pdn_ack_bits = GENMASK(15, 12),
 	},
 	[MT8173_POWER_DOMAIN_ISP] = {
+		.name = "isp",
 		.sta_mask = PWR_STATUS_ISP,
 		.ctl_offs = SPM_ISP_PWR_CON,
 		.sram_pdn_bits = GENMASK(11, 8),
 		.sram_pdn_ack_bits = GENMASK(13, 12),
 	},
 	[MT8173_POWER_DOMAIN_MM] = {
+		.name = "mm",
 		.sta_mask = PWR_STATUS_DISP,
 		.ctl_offs = SPM_DIS_PWR_CON,
 		.sram_pdn_bits = GENMASK(11, 8),
@@ -40,18 +44,21 @@ static const struct scpsys_domain_data s
 		},
 	},
 	[MT8173_POWER_DOMAIN_VENC_LT] = {
+		.name = "venc_lt",
 		.sta_mask = PWR_STATUS_VENC_LT,
 		.ctl_offs = SPM_VEN2_PWR_CON,
 		.sram_pdn_bits = GENMASK(11, 8),
 		.sram_pdn_ack_bits = GENMASK(15, 12),
 	},
 	[MT8173_POWER_DOMAIN_AUDIO] = {
+		.name = "audio",
 		.sta_mask = PWR_STATUS_AUDIO,
 		.ctl_offs = SPM_AUDIO_PWR_CON,
 		.sram_pdn_bits = GENMASK(11, 8),
 		.sram_pdn_ack_bits = GENMASK(15, 12),
 	},
 	[MT8173_POWER_DOMAIN_USB] = {
+		.name = "usb",
 		.sta_mask = PWR_STATUS_USB,
 		.ctl_offs = SPM_USB_PWR_CON,
 		.sram_pdn_bits = GENMASK(11, 8),
@@ -59,18 +66,21 @@ static const struct scpsys_domain_data s
 		.caps = MTK_SCPD_ACTIVE_WAKEUP,
 	},
 	[MT8173_POWER_DOMAIN_MFG_ASYNC] = {
+		.name = "mfg_async",
 		.sta_mask = PWR_STATUS_MFG_ASYNC,
 		.ctl_offs = SPM_MFG_ASYNC_PWR_CON,
 		.sram_pdn_bits = GENMASK(11, 8),
 		.sram_pdn_ack_bits = 0,
 	},
 	[MT8173_POWER_DOMAIN_MFG_2D] = {
+		.name = "mfg_2d",
 		.sta_mask = PWR_STATUS_MFG_2D,
 		.ctl_offs = SPM_MFG_2D_PWR_CON,
 		.sram_pdn_bits = GENMASK(11, 8),
 		.sram_pdn_ack_bits = GENMASK(13, 12),
 	},
 	[MT8173_POWER_DOMAIN_MFG] = {
+		.name = "mfg",
 		.sta_mask = PWR_STATUS_MFG,
 		.ctl_offs = SPM_MFG_PWR_CON,
 		.sram_pdn_bits = GENMASK(13, 8),
--- a/drivers/soc/mediatek/mtk-pm-domains.c
+++ b/drivers/soc/mediatek/mtk-pm-domains.c
@@ -438,7 +438,11 @@ generic_pm_domain *scpsys_add_one_domain
 		goto err_unprepare_subsys_clocks;
 	}
 
-	pd->genpd.name = node->name;
+	if (!pd->data->name)
+		pd->genpd.name = node->name;
+	else
+		pd->genpd.name = pd->data->name;
+
 	pd->genpd.power_off = scpsys_power_off;
 	pd->genpd.power_on = scpsys_power_on;
 
--- a/drivers/soc/mediatek/mtk-pm-domains.h
+++ b/drivers/soc/mediatek/mtk-pm-domains.h
@@ -76,6 +76,7 @@ struct scpsys_bus_prot_data {
 
 /**
  * struct scpsys_domain_data - scp domain data for power on/off flow
+ * @name: The name of the power domain.
  * @sta_mask: The mask for power on/off status bit.
  * @ctl_offs: The offset for main power control register.
  * @sram_pdn_bits: The mask for sram power control bits.
@@ -85,6 +86,7 @@ struct scpsys_bus_prot_data {
  * @bp_smi: bus protection for smi subsystem
  */
 struct scpsys_domain_data {
+	const char *name;
 	u32 sta_mask;
 	int ctl_offs;
 	u32 sram_pdn_bits;