From patchwork Mon Mar 15 17:35:50 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hsin-Hsiung Wang X-Patchwork-Id: 1453406 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=linux-rtc-owner@vger.kernel.org; receiver=) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 4DzkCP6rmcz9sWD for ; Tue, 16 Mar 2021 04:37:53 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236902AbhCORhQ (ORCPT ); Mon, 15 Mar 2021 13:37:16 -0400 Received: from mailgw02.mediatek.com ([210.61.82.184]:47742 "EHLO mailgw02.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S236581AbhCORgv (ORCPT ); Mon, 15 Mar 2021 13:36:51 -0400 X-UUID: 0eec942260134488abce9031e0809fe0-20210316 X-UUID: 0eec942260134488abce9031e0809fe0-20210316 Received: from mtkmrs01.mediatek.inc [(172.21.131.159)] by mailgw02.mediatek.com (envelope-from ) (Cellopoint E-mail Firewall v4.1.14 Build 0819 with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 540243923; Tue, 16 Mar 2021 01:36:47 +0800 Received: from MTKCAS06.mediatek.inc (172.21.101.30) by mtkmbs05n1.mediatek.inc (172.21.101.15) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Tue, 16 Mar 2021 01:36:45 +0800 Received: from mtksdaap41.mediatek.inc (172.21.77.4) by MTKCAS06.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Tue, 16 Mar 2021 01:36:45 +0800 From: Hsin-Hsiung Wang To: Lee Jones , Rob Herring , Matthias Brugger , Liam Girdwood , Mark Brown , Eddie Huang , Sean Wang , Alessandro Zummo , Alexandre Belloni , Nicolas Boichat CC: Hsin-Hsiung Wang , Yingjoe Chen , Fei Shao , Ran Bi , , , , , , , Subject: [PATCH v6 1/8] mfd: mt6358: refine interrupt code Date: Tue, 16 Mar 2021 01:35:50 +0800 Message-ID: <1615829757-3223-2-git-send-email-hsin-hsiung.wang@mediatek.com> X-Mailer: git-send-email 2.6.4 In-Reply-To: <1615829757-3223-1-git-send-email-hsin-hsiung.wang@mediatek.com> References: <1615829757-3223-1-git-send-email-hsin-hsiung.wang@mediatek.com> MIME-Version: 1.0 X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-rtc@vger.kernel.org This patch refines the interrupt related code to support new chips. Signed-off-by: Hsin-Hsiung Wang Acked-for-MFD-by: Lee Jones --- changes since v5: - no change. --- drivers/mfd/mt6358-irq.c | 65 +++++++++++++++++++-------------- include/linux/mfd/mt6358/core.h | 8 ++-- 2 files changed, 41 insertions(+), 32 deletions(-) diff --git a/drivers/mfd/mt6358-irq.c b/drivers/mfd/mt6358-irq.c index db734f2831ff..4b094e5e51cc 100644 --- a/drivers/mfd/mt6358-irq.c +++ b/drivers/mfd/mt6358-irq.c @@ -13,7 +13,9 @@ #include #include -static struct irq_top_t mt6358_ints[] = { +#define MTK_PMIC_REG_WIDTH 16 + +static const struct irq_top_t mt6358_ints[] = { MT6358_TOP_GEN(BUCK), MT6358_TOP_GEN(LDO), MT6358_TOP_GEN(PSC), @@ -24,6 +26,13 @@ static struct irq_top_t mt6358_ints[] = { MT6358_TOP_GEN(MISC), }; +static struct pmic_irq_data mt6358_irqd = { + .num_top = ARRAY_SIZE(mt6358_ints), + .num_pmic_irqs = MT6358_IRQ_NR, + .top_int_status_reg = MT6358_TOP_INT_STATUS0, + .pmic_ints = mt6358_ints, +}; + static void pmic_irq_enable(struct irq_data *data) { unsigned int hwirq = irqd_to_hwirq(data); @@ -62,15 +71,15 @@ static void pmic_irq_sync_unlock(struct irq_data *data) /* Find out the IRQ group */ top_gp = 0; while ((top_gp + 1) < irqd->num_top && - i >= mt6358_ints[top_gp + 1].hwirq_base) + i >= irqd->pmic_ints[top_gp + 1].hwirq_base) top_gp++; /* Find the IRQ registers */ - gp_offset = i - mt6358_ints[top_gp].hwirq_base; - int_regs = gp_offset / MT6358_REG_WIDTH; - shift = gp_offset % MT6358_REG_WIDTH; - en_reg = mt6358_ints[top_gp].en_reg + - (mt6358_ints[top_gp].en_reg_shift * int_regs); + gp_offset = i - irqd->pmic_ints[top_gp].hwirq_base; + int_regs = gp_offset / MTK_PMIC_REG_WIDTH; + shift = gp_offset % MTK_PMIC_REG_WIDTH; + en_reg = irqd->pmic_ints[top_gp].en_reg + + (irqd->pmic_ints[top_gp].en_reg_shift * int_regs); regmap_update_bits(chip->regmap, en_reg, BIT(shift), irqd->enable_hwirq[i] << shift); @@ -95,10 +104,11 @@ static void mt6358_irq_sp_handler(struct mt6397_chip *chip, unsigned int irq_status, sta_reg, status; unsigned int hwirq, virq; int i, j, ret; + struct pmic_irq_data *irqd = chip->irq_data; - for (i = 0; i < mt6358_ints[top_gp].num_int_regs; i++) { - sta_reg = mt6358_ints[top_gp].sta_reg + - mt6358_ints[top_gp].sta_reg_shift * i; + for (i = 0; i < irqd->pmic_ints[top_gp].num_int_regs; i++) { + sta_reg = irqd->pmic_ints[top_gp].sta_reg + + irqd->pmic_ints[top_gp].sta_reg_shift * i; ret = regmap_read(chip->regmap, sta_reg, &irq_status); if (ret) { @@ -114,8 +124,8 @@ static void mt6358_irq_sp_handler(struct mt6397_chip *chip, do { j = __ffs(status); - hwirq = mt6358_ints[top_gp].hwirq_base + - MT6358_REG_WIDTH * i + j; + hwirq = irqd->pmic_ints[top_gp].hwirq_base + + MTK_PMIC_REG_WIDTH * i + j; virq = irq_find_mapping(chip->irq_domain, hwirq); if (virq) @@ -131,12 +141,12 @@ static void mt6358_irq_sp_handler(struct mt6397_chip *chip, static irqreturn_t mt6358_irq_handler(int irq, void *data) { struct mt6397_chip *chip = data; - struct pmic_irq_data *mt6358_irq_data = chip->irq_data; + struct pmic_irq_data *irqd = chip->irq_data; unsigned int bit, i, top_irq_status = 0; int ret; ret = regmap_read(chip->regmap, - mt6358_irq_data->top_int_status_reg, + irqd->top_int_status_reg, &top_irq_status); if (ret) { dev_err(chip->dev, @@ -144,8 +154,8 @@ static irqreturn_t mt6358_irq_handler(int irq, void *data) return IRQ_NONE; } - for (i = 0; i < mt6358_irq_data->num_top; i++) { - bit = BIT(mt6358_ints[i].top_offset); + for (i = 0; i < irqd->num_top; i++) { + bit = BIT(irqd->pmic_ints[i].top_offset); if (top_irq_status & bit) { mt6358_irq_sp_handler(chip, i); top_irq_status &= ~bit; @@ -180,17 +190,18 @@ int mt6358_irq_init(struct mt6397_chip *chip) int i, j, ret; struct pmic_irq_data *irqd; - irqd = devm_kzalloc(chip->dev, sizeof(*irqd), GFP_KERNEL); - if (!irqd) - return -ENOMEM; + switch (chip->chip_id) { + case MT6358_CHIP_ID: + chip->irq_data = &mt6358_irqd; + break; - chip->irq_data = irqd; + default: + dev_err(chip->dev, "unsupported chip: 0x%x\n", chip->chip_id); + return -ENODEV; + } mutex_init(&chip->irqlock); - irqd->top_int_status_reg = MT6358_TOP_INT_STATUS0; - irqd->num_pmic_irqs = MT6358_IRQ_NR; - irqd->num_top = ARRAY_SIZE(mt6358_ints); - + irqd = chip->irq_data; irqd->enable_hwirq = devm_kcalloc(chip->dev, irqd->num_pmic_irqs, sizeof(*irqd->enable_hwirq), @@ -207,10 +218,10 @@ int mt6358_irq_init(struct mt6397_chip *chip) /* Disable all interrupts for initializing */ for (i = 0; i < irqd->num_top; i++) { - for (j = 0; j < mt6358_ints[i].num_int_regs; j++) + for (j = 0; j < irqd->pmic_ints[i].num_int_regs; j++) regmap_write(chip->regmap, - mt6358_ints[i].en_reg + - mt6358_ints[i].en_reg_shift * j, 0); + irqd->pmic_ints[i].en_reg + + irqd->pmic_ints[i].en_reg_shift * j, 0); } chip->irq_domain = irq_domain_add_linear(chip->dev->of_node, diff --git a/include/linux/mfd/mt6358/core.h b/include/linux/mfd/mt6358/core.h index c5a11b7458d4..68578e2019b0 100644 --- a/include/linux/mfd/mt6358/core.h +++ b/include/linux/mfd/mt6358/core.h @@ -6,12 +6,9 @@ #ifndef __MFD_MT6358_CORE_H__ #define __MFD_MT6358_CORE_H__ -#define MT6358_REG_WIDTH 16 - struct irq_top_t { int hwirq_base; unsigned int num_int_regs; - unsigned int num_int_bits; unsigned int en_reg; unsigned int en_reg_shift; unsigned int sta_reg; @@ -25,6 +22,7 @@ struct pmic_irq_data { unsigned short top_int_status_reg; bool *enable_hwirq; bool *cache_hwirq; + const struct irq_top_t *pmic_ints; }; enum mt6358_irq_top_status_shift { @@ -146,8 +144,8 @@ enum mt6358_irq_numbers { { \ .hwirq_base = MT6358_IRQ_##sp##_BASE, \ .num_int_regs = \ - ((MT6358_IRQ_##sp##_BITS - 1) / MT6358_REG_WIDTH) + 1, \ - .num_int_bits = MT6358_IRQ_##sp##_BITS, \ + ((MT6358_IRQ_##sp##_BITS - 1) / \ + MTK_PMIC_REG_WIDTH) + 1, \ .en_reg = MT6358_##sp##_TOP_INT_CON0, \ .en_reg_shift = 0x6, \ .sta_reg = MT6358_##sp##_TOP_INT_STATUS0, \