{"id":2222809,"url":"http://patchwork.ozlabs.org/api/1.1/patches/2222809/?format=json","web_url":"http://patchwork.ozlabs.org/project/linux-gpio/patch/20260413182456.811543-5-prabhakar.mahadev-lad.rj@bp.renesas.com/","project":{"id":42,"url":"http://patchwork.ozlabs.org/api/1.1/projects/42/?format=json","name":"Linux GPIO development","link_name":"linux-gpio","list_id":"linux-gpio.vger.kernel.org","list_email":"linux-gpio@vger.kernel.org","web_url":"","scm_url":"","webscm_url":""},"msgid":"<20260413182456.811543-5-prabhakar.mahadev-lad.rj@bp.renesas.com>","date":"2026-04-13T18:24:54","name":"[v2,4/5] pinctrl: renesas: rzg2l: Add NOD register cache for PM suspend/resume","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"b663146735dec8c4bee15ea1d0a8ffe433ceebf3","submitter":{"id":9539,"url":"http://patchwork.ozlabs.org/api/1.1/people/9539/?format=json","name":"Prabhakar","email":"prabhakar.csengg@gmail.com"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/linux-gpio/patch/20260413182456.811543-5-prabhakar.mahadev-lad.rj@bp.renesas.com/mbox/","series":[{"id":499739,"url":"http://patchwork.ozlabs.org/api/1.1/series/499739/?format=json","web_url":"http://patchwork.ozlabs.org/project/linux-gpio/list/?series=499739","date":"2026-04-13T18:24:51","name":"pinctrl: renesas: rzg2l: Fix PM register caching","version":2,"mbox":"http://patchwork.ozlabs.org/series/499739/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2222809/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2222809/checks/","tags":{},"headers":{"Return-Path":"\n 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11:25:10 -0700 (PDT)","From":"Prabhakar <prabhakar.csengg@gmail.com>","X-Google-Original-From":"Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>","To":"Geert Uytterhoeven <geert+renesas@glider.be>,\n\tLinus Walleij <linusw@kernel.org>","Cc":"linux-renesas-soc@vger.kernel.org,\n\tlinux-gpio@vger.kernel.org,\n\tlinux-kernel@vger.kernel.org,\n\tPrabhakar <prabhakar.csengg@gmail.com>,\n\tBiju Das <biju.das.jz@bp.renesas.com>,\n\tFabrizio Castro <fabrizio.castro.jz@renesas.com>,\n\tLad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>","Subject":"[PATCH v2 4/5] pinctrl: renesas: rzg2l: Add NOD register cache for PM\n suspend/resume","Date":"Mon, 13 Apr 2026 19:24:54 +0100","Message-ID":"<20260413182456.811543-5-prabhakar.mahadev-lad.rj@bp.renesas.com>","X-Mailer":"git-send-email 2.53.0","In-Reply-To":"<20260413182456.811543-1-prabhakar.mahadev-lad.rj@bp.renesas.com>","References":"<20260413182456.811543-1-prabhakar.mahadev-lad.rj@bp.renesas.com>","Precedence":"bulk","X-Mailing-List":"linux-gpio@vger.kernel.org","List-Id":"<linux-gpio.vger.kernel.org>","List-Subscribe":"<mailto:linux-gpio+subscribe@vger.kernel.org>","List-Unsubscribe":"<mailto:linux-gpio+unsubscribe@vger.kernel.org>","MIME-Version":"1.0","Content-Transfer-Encoding":"8bit"},"content":"From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>\n\nInclude the NOD (N-ch Open Drain) register in the PM suspend/resume\nregister cache.\n\nSigned-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>\n---\nv1->v2:\n- New patch\n---\n drivers/pinctrl/renesas/pinctrl-rzg2l.c | 37 +++++++++++++++++++++++--\n 1 file changed, 35 insertions(+), 2 deletions(-)","diff":"diff --git a/drivers/pinctrl/renesas/pinctrl-rzg2l.c b/drivers/pinctrl/renesas/pinctrl-rzg2l.c\nindex b2eb9dca7eec..be6d229c927b 100644\n--- a/drivers/pinctrl/renesas/pinctrl-rzg2l.c\n+++ b/drivers/pinctrl/renesas/pinctrl-rzg2l.c\n@@ -323,6 +323,7 @@ struct rzg2l_pinctrl_pin_settings {\n  * @ien: IEN registers cache\n  * @smt: SMT registers cache\n  * @sr: SR registers cache\n+ * @nod: NOD registers cache\n  * @sd_ch: SD_CH registers cache\n  * @eth_poc: ET_POC registers cache\n  * @oen: Output Enable register cache\n@@ -338,6 +339,7 @@ struct rzg2l_pinctrl_reg_cache {\n \tu32\t*pupd[2];\n \tu32\t*smt[2];\n \tu32\t*sr[2];\n+\tu32\t*nod[2];\n \tu8\tsd_ch[2];\n \tu8\teth_poc[2];\n \tu8\toen;\n@@ -2767,6 +2769,11 @@ static int rzg2l_pinctrl_reg_cache_alloc(struct rzg2l_pinctrl *pctrl)\n \t\tif (!cache->sr[i])\n \t\t\treturn -ENOMEM;\n \n+\t\tcache->nod[i] = devm_kcalloc(pctrl->dev, nports, sizeof(*cache->nod[i]),\n+\t\t\t\t\t     GFP_KERNEL);\n+\t\tif (!cache->nod[i])\n+\t\t\treturn -ENOMEM;\n+\n \t\t/* Allocate dedicated cache. */\n \t\tdedicated_cache->iolh[i] = devm_kcalloc(pctrl->dev, n_dedicated_pins,\n \t\t\t\t\t\t\tsizeof(*dedicated_cache->iolh[i]),\n@@ -2785,6 +2792,12 @@ static int rzg2l_pinctrl_reg_cache_alloc(struct rzg2l_pinctrl *pctrl)\n \t\t\t\t\t\t      GFP_KERNEL);\n \t\tif (!dedicated_cache->sr[i])\n \t\t\treturn -ENOMEM;\n+\n+\t\tdedicated_cache->nod[i] = devm_kcalloc(pctrl->dev, n_dedicated_pins,\n+\t\t\t\t\t\t       sizeof(*dedicated_cache->nod[i]),\n+\t\t\t\t\t\t       GFP_KERNEL);\n+\t\tif (!dedicated_cache->nod[i])\n+\t\t\treturn -ENOMEM;\n \t}\n \n \tpctrl->cache = cache;\n@@ -3016,7 +3029,7 @@ static void rzg2l_pinctrl_pm_setup_regs(struct rzg2l_pinctrl *pctrl, bool suspen\n \tstruct rzg2l_pinctrl_reg_cache *cache = pctrl->cache;\n \n \tfor (u32 port = 0; port < nports; port++) {\n-\t\tbool has_iolh, has_ien, has_pupd, has_smt, has_sr;\n+\t\tbool has_iolh, has_ien, has_pupd, has_smt, has_sr, has_nod;\n \t\tu32 off, caps;\n \t\tu8 pincnt;\n \t\tu64 cfg;\n@@ -3039,6 +3052,7 @@ static void rzg2l_pinctrl_pm_setup_regs(struct rzg2l_pinctrl *pctrl, bool suspen\n \t\thas_pupd = !!(caps & PIN_CFG_PUPD);\n \t\thas_smt = !!(caps & PIN_CFG_SMT);\n \t\thas_sr = !!(caps & PIN_CFG_SR);\n+\t\thas_nod = !!(caps & PIN_CFG_NOD);\n \n \t\tif (suspend)\n \t\t\tRZG2L_PCTRL_REG_ACCESS32(suspend, pctrl->base + PFC(off), cache->pfc[port]);\n@@ -3099,6 +3113,15 @@ static void rzg2l_pinctrl_pm_setup_regs(struct rzg2l_pinctrl *pctrl, bool suspen\n \t\t\t\t\t\t\t cache->sr[1][port]);\n \t\t\t}\n \t\t}\n+\n+\t\tif (has_nod) {\n+\t\t\tRZG2L_PCTRL_REG_ACCESS32(suspend, pctrl->base + NOD(off),\n+\t\t\t\t\t\t cache->nod[0][port]);\n+\t\t\tif (pincnt >= 4) {\n+\t\t\t\tRZG2L_PCTRL_REG_ACCESS32(suspend, pctrl->base + NOD(off) + 4,\n+\t\t\t\t\t\t\t cache->nod[1][port]);\n+\t\t\t}\n+\t\t}\n \t}\n }\n \n@@ -3113,7 +3136,7 @@ static void rzg2l_pinctrl_pm_setup_dedicated_regs(struct rzg2l_pinctrl *pctrl, b\n \t * port offset are close together.\n \t */\n \tfor (i = 0, caps = 0; i < pctrl->data->n_dedicated_pins; i++) {\n-\t\tbool has_iolh, has_ien, has_sr;\n+\t\tbool has_iolh, has_ien, has_sr, has_nod;\n \t\tu32 off, next_off = 0;\n \t\tu64 cfg, next_cfg;\n \t\tu8 pincnt;\n@@ -3136,6 +3159,7 @@ static void rzg2l_pinctrl_pm_setup_dedicated_regs(struct rzg2l_pinctrl *pctrl, b\n \t\t\t\t      PIN_CFG_IOLH_C | PIN_CFG_IOLH_RZV2H));\n \t\thas_ien = !!(caps & PIN_CFG_IEN);\n \t\thas_sr = !!(caps & PIN_CFG_SR);\n+\t\thas_nod = !!(caps & PIN_CFG_NOD);\n \t\tpincnt = hweight8(FIELD_GET(RZG2L_SINGLE_PIN_BITS_MASK, cfg));\n \n \t\tif (has_iolh) {\n@@ -3150,6 +3174,10 @@ static void rzg2l_pinctrl_pm_setup_dedicated_regs(struct rzg2l_pinctrl *pctrl, b\n \t\t\tRZG2L_PCTRL_REG_ACCESS32(suspend, pctrl->base + SR(off),\n \t\t\t\t\t\t cache->sr[0][i]);\n \t\t}\n+\t\tif (has_nod) {\n+\t\t\tRZG2L_PCTRL_REG_ACCESS32(suspend, pctrl->base + NOD(off),\n+\t\t\t\t\t\t cache->nod[0][i]);\n+\t\t}\n \t\tif (pincnt >= 4) {\n \t\t\tif (has_iolh) {\n \t\t\t\tRZG2L_PCTRL_REG_ACCESS32(suspend,\n@@ -3166,6 +3194,11 @@ static void rzg2l_pinctrl_pm_setup_dedicated_regs(struct rzg2l_pinctrl *pctrl, b\n \t\t\t\t\t\t\t pctrl->base + SR(off) + 4,\n \t\t\t\t\t\t\t cache->sr[1][i]);\n \t\t\t}\n+\t\t\tif (has_nod) {\n+\t\t\t\tRZG2L_PCTRL_REG_ACCESS32(suspend,\n+\t\t\t\t\t\t\t pctrl->base + NOD(off) + 4,\n+\t\t\t\t\t\t\t cache->nod[1][i]);\n+\t\t\t}\n \t\t}\n \t\tcaps = 0;\n \t}\n","prefixes":["v2","4/5"]}