From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:55472 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753785AbcHRIbV (ORCPT ); Thu, 18 Aug 2016 04:31:21 -0400 Subject: Patch "gpio: pca953x: Fix NBANK calculation for PCA9536" has been added to the 4.7-stable tree To: vigneshr@ti.com, gregkh@linuxfoundation.org, linus.walleij@linaro.org Cc: , From: Date: Thu, 18 Aug 2016 10:30:56 +0200 Message-ID: <14715090566040@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled gpio: pca953x: Fix NBANK calculation for PCA9536 to the 4.7-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: gpio-pca953x-fix-nbank-calculation-for-pca9536.patch and it can be found in the queue-4.7 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From a246b8198f776a16d1d3a3bbfc2d437bad766b29 Mon Sep 17 00:00:00 2001 From: Vignesh R Date: Thu, 9 Jun 2016 11:02:04 +0530 Subject: gpio: pca953x: Fix NBANK calculation for PCA9536 From: Vignesh R commit a246b8198f776a16d1d3a3bbfc2d437bad766b29 upstream. NBANK() macro assumes that ngpios is a multiple of 8(BANK_SZ) and hence results in 0 banks for PCA9536 which has just 4 gpios. This is wrong as PCA9356 has 1 bank with 4 gpios. This results in uninitialized PCA953X_INVERT register. Fix this by using DIV_ROUND_UP macro in NBANK(). Signed-off-by: Vignesh R Signed-off-by: Linus Walleij Signed-off-by: Greg Kroah-Hartman --- drivers/gpio/gpio-pca953x.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/gpio/gpio-pca953x.c +++ b/drivers/gpio/gpio-pca953x.c @@ -90,7 +90,7 @@ MODULE_DEVICE_TABLE(acpi, pca953x_acpi_i #define MAX_BANK 5 #define BANK_SZ 8 -#define NBANK(chip) (chip->gpio_chip.ngpio / BANK_SZ) +#define NBANK(chip) DIV_ROUND_UP(chip->gpio_chip.ngpio, BANK_SZ) struct pca953x_chip { unsigned gpio_start; Patches currently in stable-queue which might be from vigneshr@ti.com are queue-4.7/gpio-pca953x-fix-nbank-calculation-for-pca9536.patch