{"id":2225072,"url":"http://patchwork.ozlabs.org/api/1.1/patches/2225072/?format=json","web_url":"http://patchwork.ozlabs.org/project/linux-pwm/patch/20260420104332.153640-8-biju.das.jz@bp.renesas.com/","project":{"id":38,"url":"http://patchwork.ozlabs.org/api/1.1/projects/38/?format=json","name":"Linux PWM development","link_name":"linux-pwm","list_id":"linux-pwm.vger.kernel.org","list_email":"linux-pwm@vger.kernel.org","web_url":"","scm_url":"","webscm_url":""},"msgid":"<20260420104332.153640-8-biju.das.jz@bp.renesas.com>","date":"2026-04-20T10:43:24","name":"[v5,7/9] pwm: rzg2l-gpt: Add calculate_prescale() callback to struct rzg2l_gpt_info","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"71be25c8db614fdb0772e44880551e71c6811f3e","submitter":{"id":87968,"url":"http://patchwork.ozlabs.org/api/1.1/people/87968/?format=json","name":"Biju","email":"biju.das.au@gmail.com"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/linux-pwm/patch/20260420104332.153640-8-biju.das.jz@bp.renesas.com/mbox/","series":[{"id":500593,"url":"http://patchwork.ozlabs.org/api/1.1/series/500593/?format=json","web_url":"http://patchwork.ozlabs.org/project/linux-pwm/list/?series=500593","date":"2026-04-20T10:43:17","name":"Add Renesas RZ/G3E GPT support","version":5,"mbox":"http://patchwork.ozlabs.org/series/500593/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2225072/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2225072/checks/","tags":{},"headers":{"Return-Path":"\n ","X-Original-To":["incoming@patchwork.ozlabs.org","linux-pwm@vger.kernel.org"],"Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256\n header.s=20251104 header.b=TR6d7U1v;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=104.64.211.4; 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Add a\ncalculate_prescale function pointer to struct rzg2l_gpt_info to allow\nper-SoC prescaler selection logic. Replace the direct call to\nrzg2l_gpt_calculate_prescale() in rzg2l_gpt_round_waveform_tohw() with an\nindirect call through info->calculate_prescale(). Wire the existing\nrzg2l_gpt_calculate_prescale() into rzg2l_data to preserve current RZ/G2L\nbehaviour.\n\nReviewed-by: Tommaso Merciai \nSigned-off-by: Biju Das \n---\nv4->v5:\n * Updated commit description.\nv3->v4:\n * No change.\nv2->v3:\n * No change.\nv1->v2:\n * Collected tag.\n---\n drivers/pwm/pwm-rzg2l-gpt.c | 4 +++-\n 1 file changed, 3 insertions(+), 1 deletion(-)","diff":"diff --git a/drivers/pwm/pwm-rzg2l-gpt.c b/drivers/pwm/pwm-rzg2l-gpt.c\nindex 4324ffc8629d..de68c02b2d50 100644\n--- a/drivers/pwm/pwm-rzg2l-gpt.c\n+++ b/drivers/pwm/pwm-rzg2l-gpt.c\n@@ -91,6 +91,7 @@\n #define RZG2L_LAST_POEG_GROUP\t3\n \n struct rzg2l_gpt_info {\n+\tu8 (*calculate_prescale)(u64 period);\n \tu32 gtcr_tpcs;\n \tu8 prescale_mult;\n };\n@@ -305,7 +306,7 @@ static int rzg2l_gpt_round_waveform_tohw(struct pwm_chip *chip,\n \t\t}\n \t}\n \n-\twfhw->prescale = rzg2l_gpt_calculate_prescale(rzg2l_gpt, period_ticks);\n+\twfhw->prescale = info->calculate_prescale(period_ticks);\n \tpv = rzg2l_gpt_calculate_pv_or_dc(info, period_ticks, wfhw->prescale);\n \twfhw->gtpr = pv;\n \twfhw->gtccr = 0;\n@@ -587,6 +588,7 @@ static int rzg2l_gpt_probe(struct platform_device *pdev)\n }\n \n static const struct rzg2l_gpt_info rzg2l_data = {\n+\t.calculate_prescale = rzg2l_gpt_calculate_prescale,\n \t.gtcr_tpcs = RZG2L_GTCR_TPCS,\n \t.prescale_mult = 2,\n };\n","prefixes":["v5","7/9"]}