linux-kernel - [PATCH V3 4/4] gpio: eic-sprd: Support 8 banks EIC controller

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Date: Thu, 4 Jan 2024 10:42:44 +0800
From: Wenhua Lin <Wenhua.Lin@...soc.com>
To: Linus Walleij <linus.walleij@...aro.org>,
        Andy Shevchenko
	<andy@...nel.org>,
        Bartosz Golaszewski <brgl@...ev.pl>
CC: Orson Zhai <orsonzhai@...il.com>,
        Baolin Wang
	<baolin.wang@...ux.alibaba.com>,
        Chunyan Zhang <zhang.lyra@...il.com>, <linux-gpio@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, wenhua lin
	<wenhua.lin1994@...il.com>,
        Wenhua Lin <Wenhua.Lin@...soc.com>,
        Xiongpeng Wu
	<xiongpeng.wu@...soc.com>
Subject: [PATCH V3 4/4] gpio: eic-sprd: Support 8 banks EIC controller

In order to solve the problem of insufficient eic,
it supports 8 banks of eic controller, each bank contains 8 eic.

Signed-off-by: Wenhua Lin <Wenhua.Lin@...soc.com>
---
 drivers/gpio/gpio-eic-sprd.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/gpio/gpio-eic-sprd.c b/drivers/gpio/gpio-eic-sprd.c
index 1ca3c444957c..715c7d581d7f 100644
--- a/drivers/gpio/gpio-eic-sprd.c
+++ b/drivers/gpio/gpio-eic-sprd.c
@@ -52,10 +52,10 @@
 #define SPRD_EIC_SYNC_DATA		0x1c
 
 /*
- * The digital-chip EIC controller can support maximum 3 banks, and each bank
+ * The digital-chip EIC controller can support maximum 8 banks, and each bank
  * contains 8 EICs.
  */
-#define SPRD_EIC_MAX_BANK		3
+#define SPRD_EIC_MAX_BANK		8
 #define SPRD_EIC_PER_BANK_NR		8
 #define SPRD_EIC_DATA_MASK		GENMASK(7, 0)
 #define SPRD_EIC_BIT(x)			((x) & (SPRD_EIC_PER_BANK_NR - 1))
@@ -627,9 +627,9 @@ static int sprd_eic_probe(struct platform_device *pdev)
 
 	for (i = 0; i < SPRD_EIC_MAX_BANK; i++) {
 		/*
-		 * We can have maximum 3 banks EICs, and each EIC has
+		 * We can have maximum 8 banks EICs, and each EIC has
 		 * its own base address. But some platform maybe only
-		 * have one bank EIC, thus base[1] and base[2] can be
+		 * have one bank EIC, thus base[1] to base[7] can be
 		 * optional.
 		 */
 		res = platform_get_resource(pdev, IORESOURCE_MEM, i);
-- 
2.17.1