linux-kernel - [PATCH 11/14] ARM: davinci: dm644x-evm: use device properties for at24 eeprom

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Message-Id: <20180625155025.12567-12-brgl@bgdev.pl>
Date:   Mon, 25 Jun 2018 17:50:22 +0200
From:   Bartosz Golaszewski <brgl@...ev.pl>
To:     Sekhar Nori <nsekhar@...com>, Kevin Hilman <khilman@...nel.org>,
        Russell King <linux@...linux.org.uk>,
        Grygorii Strashko <grygorii.strashko@...com>,
        "David S . Miller" <davem@...emloft.net>,
        Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
        Lukas Wunner <lukas@...ner.de>, Rob Herring <robh@...nel.org>,
        Florian Fainelli <f.fainelli@...il.com>,
        Dan Carpenter <dan.carpenter@...cle.com>,
        Ivan Khoronzhuk <ivan.khoronzhuk@...aro.org>,
        David Lechner <david@...hnology.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-omap@...r.kernel.org, netdev@...r.kernel.org,
        Bartosz Golaszewski <bgolaszewski@...libre.com>
Subject: [PATCH 11/14] ARM: davinci: dm644x-evm: use device properties for at24 eeprom

From: Bartosz Golaszewski <bgolaszewski@...libre.com>

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. Drop the byte_len/size property, as the model name
already implies the EEPROM's size.

Signed-off-by: Bartosz Golaszewski <bgolaszewski@...libre.com>
---
 arch/arm/mach-davinci/board-dm644x-evm.c | 12 ++++--------
 1 file changed, 4 insertions(+), 8 deletions(-)

diff --git a/arch/arm/mach-davinci/board-dm644x-evm.c b/arch/arm/mach-davinci/board-dm644x-evm.c
index adbe8630ef19..5b26a8c5bbd8 100644
--- a/arch/arm/mach-davinci/board-dm644x-evm.c
+++ b/arch/arm/mach-davinci/board-dm644x-evm.c
@@ -16,8 +16,8 @@
 #include <linux/gpio/machine.h>
 #include <linux/i2c.h>
 #include <linux/platform_data/pcf857x.h>
-#include <linux/platform_data/at24.h>
 #include <linux/platform_data/gpio-davinci.h>
+#include <linux/property.h>
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/rawnand.h>
 #include <linux/mtd/partitions.h>
@@ -486,12 +486,8 @@ static struct nvmem_cell_lookup dm6446evm_mac_address_cell = {
 	.nvmem_name = "1-00500",
 };
 
-static struct at24_platform_data eeprom_info = {
-	.byte_len	= (256*1024) / 8,
-	.page_size	= 64,
-	.flags		= AT24_FLAG_ADDR16,
-	.setup          = davinci_get_mac_addr,
-	.context	= (void *)0x7f00,
+static const struct property_entry eeprom_properties[] = {
+	PROPERTY_ENTRY_U32("pagesize", 64),
 };
 
 /*
@@ -601,7 +597,7 @@ static struct i2c_board_info __initdata i2c_info[] =  {
 	},
 	{
 		I2C_BOARD_INFO("24c256", 0x50),
-		.platform_data	= &eeprom_info,
+		.properties = eeprom_properties,
 	},
 	{
 		I2C_BOARD_INFO("tlv320aic33", 0x1b),
-- 
2.17.1