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[192.94.94.33]) by mx.google.com with ESMTPS id o4sm2858363oef.11.2012.08.16.05.13.03 (version=SSLv3 cipher=OTHER); Thu, 16 Aug 2012 05:13:06 -0700 (PDT) From: Peter Ujfalusi To: Samuel Ortiz , Grant Likely , Linus Walleij Subject: [PATCH v2 2/3] mfd: twl6040: Add twl6040-gpio child Date: Thu, 16 Aug 2012 15:13:14 +0300 Message-Id: <1345119195-7490-3-git-send-email-peter.ujfalusi@ti.com> X-Mailer: git-send-email 1.7.8.6 In-Reply-To: <1345119195-7490-1-git-send-email-peter.ujfalusi@ti.com> References: <1345119195-7490-1-git-send-email-peter.ujfalusi@ti.com> X-Gm-Message-State: ALoCoQkPOLWJIljQZ8FV9ZW/I1/e51Cx1vE4zrAoIPHqB0nj/yNLgmCfj8l1KL3i58AERIKG0aAO X-Spam-Note: CRM114 invocation failed X-Spam-Score: -4.2 (----) X-Spam-Report: SpamAssassin version 3.3.2 on merlin.infradead.org summary: Content analysis details: (-4.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at http://www.dnswl.org/, medium trust [74.125.149.145 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] Cc: peter.ujfalusi@ti.com, Sergio Aguirre , devicetree-discuss@lists.ozlabs.org, linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: linux-arm-kernel-bounces@lists.infradead.org Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org Add needed platform data structure and code to be able to load the GPO child of twl6040. Update the devicetree binding documentation at the same time. Signed-off-by: Sergio Aguirre Signed-off-by: Peter Ujfalusi --- Documentation/devicetree/bindings/mfd/twl6040.txt | 9 ++++++--- drivers/mfd/twl6040-core.c | 15 +++++++++++++++ include/linux/mfd/twl6040.h | 9 ++++++++- 3 files changed, 29 insertions(+), 4 deletions(-) diff --git a/Documentation/devicetree/bindings/mfd/twl6040.txt b/Documentation/devicetree/bindings/mfd/twl6040.txt index c855240..0f5dd70 100644 --- a/Documentation/devicetree/bindings/mfd/twl6040.txt +++ b/Documentation/devicetree/bindings/mfd/twl6040.txt @@ -1,7 +1,7 @@ Texas Instruments TWL6040 family -The TWL6040s are 8-channel high quality low-power audio codecs providing audio -and vibra functionality on OMAP4+ platforms. +The TWL6040s are 8-channel high quality low-power audio codecs providing audio, +vibra and GPO functionality on OMAP4+ platforms. They are connected ot the host processor via i2c for commands, McPDM for audio data and commands. @@ -10,6 +10,8 @@ Required properties: - reg: must be 0x4b for i2c address - interrupts: twl6040 has one interrupt line connecteded to the main SoC - interrupt-parent: The parent interrupt controller +- gpio-controller: +- #gpio-cells = <1>: twl6040 provides GPO lines. - twl6040,audpwron-gpio: Power on GPIO line for the twl6040 - vio-supply: Regulator for the twl6040 VIO supply @@ -37,7 +39,6 @@ Example: &i2c1 { twl6040: twl@4b { compatible = "ti,twl6040"; - reg = <0x4b>; interrupts = <0 119 4>; interrupt-parent = <&gic>; @@ -60,3 +61,5 @@ Example: }; }; }; + +/include/ "twl6040.dtsi" diff --git a/drivers/mfd/twl6040-core.c b/drivers/mfd/twl6040-core.c index b0fad0f..413df8e 100644 --- a/drivers/mfd/twl6040-core.c +++ b/drivers/mfd/twl6040-core.c @@ -631,6 +631,21 @@ static int __devinit twl6040_probe(struct i2c_client *client, children++; } + /* + * Enable the GPO driver in the following cases: + * DT booted kernel or legacy boot with valid gpo platform_data + */ + if (!pdata || (pdata && pdata->gpo)) { + cell = &twl6040->cells[children]; + cell->name = "twl6040-gpo"; + + if (pdata) { + cell->platform_data = pdata->gpo; + cell->pdata_size = sizeof(*pdata->gpo); + } + children++; + } + ret = mfd_add_devices(&client->dev, -1, twl6040->cells, children, NULL, 0); if (ret) diff --git a/include/linux/mfd/twl6040.h b/include/linux/mfd/twl6040.h index 269b706..8991532 100644 --- a/include/linux/mfd/twl6040.h +++ b/include/linux/mfd/twl6040.h @@ -158,7 +158,7 @@ #define TWL6040_VIBROCDET 0x20 #define TWL6040_TSHUTDET 0x40 -#define TWL6040_CELLS 2 +#define TWL6040_CELLS 3 #define TWL6040_REV_ES1_0 0x00 #define TWL6040_REV_ES1_1 0x01 /* Rev ES1.1 and ES1.2 */ @@ -176,6 +176,8 @@ #define TWL6040_SYSCLK_SEL_LPPLL 0 #define TWL6040_SYSCLK_SEL_HPPLL 1 +#define TWL6040_GPO_MAX 3 + struct twl6040_codec_data { u16 hs_left_step; u16 hs_right_step; @@ -192,12 +194,17 @@ struct twl6040_vibra_data { int vddvibr_uV; /* VDDVIBR volt, set 0 for fixed reg */ }; +struct twl6040_gpo_data { + int gpio_base; +}; + struct twl6040_platform_data { int audpwron_gpio; /* audio power-on gpio */ unsigned int irq_base; struct twl6040_codec_data *codec; struct twl6040_vibra_data *vibra; + struct twl6040_gpo_data *gpo; }; struct regmap;