linux-kernel - [PATCH 4/4] ARM: imx: pcm037: use device properties for at24 eeprom

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Wed,  4 Apr 2018 15:16:27 +0200
From:   Bartosz Golaszewski <brgl@...ev.pl>
To:     Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <kernel@...gutronix.de>,
        Fabio Estevam <fabio.estevam@....com>,
        Russell King <linux@...linux.org.uk>
Cc:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Bartosz Golaszewski <brgl@...ev.pl>
Subject: [PATCH 4/4] ARM: imx: pcm037: use device properties for at24 eeprom

We want to work towards phasing out the at24_platform_data structure.
There are few users and its contents can be represented using generic
device properties. Using device properties only will allow us to
significantly simplify the at24 configuration code.

Remove the at24_platform_data structure and replace it with an array
of property entries. Specify the exact model instead of the "at24"
wildcard and drop the byte_len/size property, as the model name already
implies the EEPROM's size.

Signed-off-by: Bartosz Golaszewski <brgl@...ev.pl>
---
 arch/arm/mach-imx/mach-pcm037.c | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

diff --git a/arch/arm/mach-imx/mach-pcm037.c b/arch/arm/mach-imx/mach-pcm037.c
index b787ba6897e4..004737c40fda 100644
--- a/arch/arm/mach-imx/mach-pcm037.c
+++ b/arch/arm/mach-imx/mach-pcm037.c
@@ -23,7 +23,7 @@
 #include <linux/smsc911x.h>
 #include <linux/interrupt.h>
 #include <linux/i2c.h>
-#include <linux/platform_data/at24.h>
+#include <linux/property.h>
 #include <linux/delay.h>
 #include <linux/spi/spi.h>
 #include <linux/irq.h>
@@ -263,16 +263,15 @@ static const struct imxi2c_platform_data pcm037_i2c2_data __initconst = {
 	.bitrate = 20000,
 };
 
-static struct at24_platform_data board_eeprom = {
-	.byte_len = 4096,
-	.page_size = 32,
-	.flags = AT24_FLAG_ADDR16,
+static const struct property_entry board_eeprom_properties[] = {
+	PROPERTY_ENTRY_U32("pagesize", 32),
+	{ }
 };
 
 static struct i2c_board_info pcm037_i2c_devices[] = {
 	{
-		I2C_BOARD_INFO("at24", 0x52), /* E0=0, E1=1, E2=0 */
-		.platform_data = &board_eeprom,
+		I2C_BOARD_INFO("24c32", 0x52), /* E0=0, E1=1, E2=0 */
+		.properties = board_eeprom_properties,
 	}, {
 		I2C_BOARD_INFO("pcf8563", 0x51),
 	}
-- 
2.16.3