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From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: Linus Walleij <linus.walleij@linaro.org>,
	Bartosz Golaszewski <bgolaszewski@baylibre.com>,
	linux-gpio@vger.kernel.org,
	Mika Westerberg <mika.westerberg@linux.intel.com>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Subject: [PATCH v2 03/24] pinctrl: lynxpoint: Correct amount of pins
Date: Mon,  9 Dec 2019 15:09:05 +0200	[thread overview]
Message-ID: <20191209130926.86483-4-andriy.shevchenko@linux.intel.com> (raw)
In-Reply-To: <20191209130926.86483-1-andriy.shevchenko@linux.intel.com>

When we count from 0 it's possible to get into off-by-one error.
That's what had happened to this driver. So, correct amount of pins
and related typos in the code.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 drivers/pinctrl/intel/pinctrl-lynxpoint.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/pinctrl/intel/pinctrl-lynxpoint.c b/drivers/pinctrl/intel/pinctrl-lynxpoint.c
index c30fd86846a7..162fc38c929d 100644
--- a/drivers/pinctrl/intel/pinctrl-lynxpoint.c
+++ b/drivers/pinctrl/intel/pinctrl-lynxpoint.c
@@ -18,9 +18,9 @@
 #include <linux/slab.h>
 #include <linux/types.h>
 
-/* LynxPoint chipset has support for 94 gpio pins */
+/* LynxPoint chipset has support for 95 GPIO pins */
 
-#define LP_NUM_GPIO	94
+#define LP_NUM_GPIO	95
 
 /* Bitmapped register offsets */
 #define LP_ACPI_OWNED	0x00 /* Bitmap, set by bios, 0: pin reserved for ACPI */
@@ -54,11 +54,11 @@ struct lp_gpio {
 /*
  * Lynxpoint gpios are controlled through both bitmapped registers and
  * per gpio specific registers. The bitmapped registers are in chunks of
- * 3 x 32bit registers to cover all 94 gpios
+ * 3 x 32bit registers to cover all 95 GPIOs
  *
  * per gpio specific registers consist of two 32bit registers per gpio
- * (LP_CONFIG1 and LP_CONFIG2), with 94 gpios there's a total of
- * 188 config registers.
+ * (LP_CONFIG1 and LP_CONFIG2), with 95 GPIOs there's a total of
+ * 190 config registers.
  *
  * A simplified view of the register layout look like this:
  *
@@ -67,7 +67,7 @@ struct lp_gpio {
  * LP_ACPI_OWNED[94:64] gpio ownerships for gpios 63-94
  * ...
  * LP_INT_ENABLE[31:0] ...
- * LP_INT_ENABLE[63:31] ...
+ * LP_INT_ENABLE[63:32] ...
  * LP_INT_ENABLE[94:64] ...
  * LP0_CONFIG1 (gpio 0) config1 reg for gpio 0 (per gpio registers)
  * LP0_CONFIG2 (gpio 0) config2 reg for gpio 0
-- 
2.24.0


  parent reply	other threads:[~2019-12-09 13:09 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-12-09 13:09 [PATCH v2 00/24] pinctrl: intel: Move Lynxpoint to pin control umbrella Andy Shevchenko
2019-12-09 13:09 ` [PATCH v2 01/24] pinctrl: lynxpoint: Move GPIO driver to pin controller folder Andy Shevchenko
2019-12-09 13:09 ` [PATCH v2 02/24] pinctrl: lynxpoint: Use raw_spinlock for locking Andy Shevchenko
2019-12-09 13:09 ` Andy Shevchenko [this message]
2019-12-09 13:09 ` [PATCH v2 04/24] pinctrl: lynxpoint: Drop useless assignment Andy Shevchenko
2019-12-09 13:09 ` [PATCH v2 05/24] pinctrl: lynxpoint: Use %pR to print IO resource Andy Shevchenko
2019-12-09 13:09 ` [PATCH v2 06/24] pinctrl: lynxpoint: Use standard pattern for memory allocation Andy Shevchenko
2019-12-09 13:09 ` [PATCH v2 07/24] pinctrl: lynxpoint: Assume 2 bits for mode selector Andy Shevchenko
2019-12-09 13:09 ` [PATCH v2 08/24] pinctrl: lynxpoint: Relax GPIO request rules Andy Shevchenko
2019-12-09 13:09 ` [PATCH v2 09/24] pinctrl: lynxpoint: Keep pointer to struct device instead of its container Andy Shevchenko
2019-12-09 13:09 ` [PATCH v2 10/24] pinctrl: lynxpoint: Switch to memory mapped IO accessors Andy Shevchenko
2019-12-09 13:09 ` [PATCH v2 11/24] pinctrl: lynxpoint: Convert unsigned to unsigned int Andy Shevchenko
2019-12-09 13:09 ` [PATCH v2 12/24] pinctrl: lynxpoint: Extract lp_gpio_acpi_use() for future use Andy Shevchenko
2019-12-09 13:09 ` [PATCH v2 13/24] pinctrl: lynxpoint: Move ->remove closer to ->probe() Andy Shevchenko
2019-12-09 13:09 ` [PATCH v2 14/24] pinctrl: lynxpoint: Move lp_irq_type() closer to IRQ related routines Andy Shevchenko
2019-12-09 13:09 ` [PATCH v2 15/24] pinctrl: lynxpoint: Move ownership check to IRQ chip Andy Shevchenko
2019-12-09 13:09 ` [PATCH v2 16/24] pinctrl: lynxpoint: Implement ->irq_ack() callback Andy Shevchenko
2019-12-09 13:09 ` [PATCH v2 17/24] pinctrl: lynxpoint: Implement intel_gpio_get_direction callback Andy Shevchenko
2019-12-09 13:09 ` [PATCH v2 18/24] pinctrl: lynxpoint: Add pin control data structures Andy Shevchenko
2019-12-09 13:09 ` [PATCH v2 19/24] pinctrl: lynxpoint: Reuse struct intel_pinctrl in the driver Andy Shevchenko
2019-12-09 13:09 ` [PATCH v2 20/24] pinctrl: lynxpoint: Add pin control operations Andy Shevchenko
2019-12-09 13:09 ` [PATCH v2 21/24] pinctrl: lynxpoint: Implement ->pin_dbg_show() Andy Shevchenko
2019-12-09 13:09 ` [PATCH v2 22/24] pinctrl: lynxpoint: Add GPIO <-> pin mapping ranges via callback Andy Shevchenko
2019-12-09 13:09 ` [PATCH v2 23/24] pinctrl: lynxpoint: Switch to pin control API Andy Shevchenko
2019-12-09 13:09 ` [PATCH v2 24/24] pinctrl: lynxpoint: Update summary in the driver Andy Shevchenko
2019-12-11 13:19 ` [PATCH v2 00/24] pinctrl: intel: Move Lynxpoint to pin control umbrella Mika Westerberg
2019-12-13 13:36 ` Linus Walleij
2019-12-13 14:44   ` Andy Shevchenko
2019-12-16 10:19     ` Linus Walleij

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