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Message-Id: <7c9ab1d702eb62755993321865d260fa54b90358.1526490085.git.hns@goldelico.com>
Date: Wed, 16 May 2018 19:01:24 +0200
From: "H. Nikolaus Schaller" <hns@...delico.com>
To: galak@...eaurora.org, andy.shevchenko@...il.com,
Rob Herring <robh+dt@...nel.org>,
Pawel Moll <pawel.moll@....com>,
Mark Rutland <mark.rutland@....com>,
Ian Campbell <ijc+devicetree@...lion.org.uk>,
Linus Walleij <linus.walleij@...aro.org>,
Alexandre Courbot <gnurou@...il.com>
Cc: devicetree@...r.kernel.org, linux-gpio@...r.kernel.org,
linux-kernel@...r.kernel.org, letux-kernel@...nphoenux.org,
kernel@...a-handheld.com,
"H. Nikolaus Schaller" <hns@...delico.com>
Subject: [PATCH v6 1/3] gpio: pca953x: set the PCA_PCAL flag also when matching by DT
The of_device_table is missing the PCA_PCAL flag so the
pcal6524 would be operated in tca6424 compatibility mode which
does not handle the new interrupt mask registers.
Suggested-by: Andy Shevchenko <andy.shevchenko@...il.com>
Signed-off-by: H. Nikolaus Schaller <hns@...delico.com>
---
drivers/gpio/gpio-pca953x.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/gpio/gpio-pca953x.c b/drivers/gpio/gpio-pca953x.c
index 7d37692d672e..2b667166e855 100644
--- a/drivers/gpio/gpio-pca953x.c
+++ b/drivers/gpio/gpio-pca953x.c
@@ -58,6 +58,7 @@
#define PCA_GPIO_MASK 0x00FF
#define PCA_INT 0x0100
#define PCA_PCAL 0x0200
+#define PCA_LATCH_INT (PCA_PCAL | PCA_INT)
#define PCA953X_TYPE 0x1000
#define PCA957X_TYPE 0x2000
#define PCA_TYPE_MASK 0xF000
@@ -946,8 +947,8 @@ static const struct of_device_id pca953x_dt_ids[] = {
{ .compatible = "nxp,pca9575", .data = OF_957X(16, PCA_INT), },
{ .compatible = "nxp,pca9698", .data = OF_953X(40, 0), },
- { .compatible = "nxp,pcal6524", .data = OF_953X(24, PCA_INT), },
- { .compatible = "nxp,pcal9555a", .data = OF_953X(16, PCA_INT), },
+ { .compatible = "nxp,pcal6524", .data = OF_953X(24, PCA_LATCH_INT), },
+ { .compatible = "nxp,pcal9555a", .data = OF_953X(16, PCA_LATCH_INT), },
{ .compatible = "maxim,max7310", .data = OF_953X( 8, 0), },
{ .compatible = "maxim,max7312", .data = OF_953X(16, PCA_INT), },
--
2.12.2
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