From patchwork Wed Jan 16 20:34:55 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Luciano Coelho X-Patchwork-Id: 1993351 Return-Path: X-Original-To: patchwork-linux-omap@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork1.kernel.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by patchwork1.kernel.org (Postfix) with ESMTP id A365B3FC85 for ; Wed, 16 Jan 2013 20:36:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754978Ab3APUf6 (ORCPT ); Wed, 16 Jan 2013 15:35:58 -0500 Received: from comal.ext.ti.com ([198.47.26.152]:57977 "EHLO comal.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752064Ab3APUf5 (ORCPT ); Wed, 16 Jan 2013 15:35:57 -0500 Received: from dlelxv30.itg.ti.com ([172.17.2.17]) by comal.ext.ti.com (8.13.7/8.13.7) with ESMTP id r0GKZnHR014369; Wed, 16 Jan 2013 14:35:49 -0600 Received: from DFLE73.ent.ti.com (dfle73.ent.ti.com [128.247.5.110]) by dlelxv30.itg.ti.com (8.13.8/8.13.8) with ESMTP id r0GKZnP4026516; Wed, 16 Jan 2013 14:35:49 -0600 Received: from dlelxv22.itg.ti.com (172.17.1.197) by dfle73.ent.ti.com (128.247.5.110) with Microsoft SMTP Server id 14.1.323.3; Wed, 16 Jan 2013 14:35:48 -0600 Received: from cumari.coelho.fi (h79-16.vpn.ti.com [172.24.79.16]) by dlelxv22.itg.ti.com (8.13.8/8.13.8) with ESMTP id r0GKZkX7025892; Wed, 16 Jan 2013 14:35:47 -0600 From: Luciano Coelho To: CC: , , , Subject: [PATCH] OMAP: omap4-panda: add WiLink shared transport power functions Date: Wed, 16 Jan 2013 22:34:55 +0200 Message-ID: <1358368495-10499-1-git-send-email-coelho@ti.com> X-Mailer: git-send-email 1.7.10.4 MIME-Version: 1.0 Sender: linux-omap-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org The code to enable and disable the WiLink shared transport has been removed from the TI-ST driver, so it must be implemented in the board files instead. Add the relevant operations to Panda's board file. Additionally, add the UART2 muxing data, so it's properly configured. Signed-off-by: Luciano Coelho --- arch/arm/mach-omap2/board-omap4panda.c | 57 +++++++++++++++++++++++++++++--- 1 file changed, 53 insertions(+), 4 deletions(-) diff --git a/arch/arm/mach-omap2/board-omap4panda.c b/arch/arm/mach-omap2/board-omap4panda.c index 5c8e9ce..97a274b 100644 --- a/arch/arm/mach-omap2/board-omap4panda.c +++ b/arch/arm/mach-omap2/board-omap4panda.c @@ -51,18 +51,57 @@ #define GPIO_HUB_NRESET 62 #define GPIO_WIFI_PMENA 43 #define GPIO_WIFI_IRQ 53 +#define GPIO_BT_EN 46 /* wl127x BT, FM, GPS connectivity chip */ +static int plat_kim_chip_enable(struct kim_data_s *kim_data) +{ + gpio_set_value(GPIO_BT_EN, GPIO_LOW); + mdelay(5); + gpio_set_value(GPIO_BT_EN, GPIO_HIGH); + mdelay(100); + + return 0; +} + +static int plat_kim_chip_disable(struct kim_data_s *kim_data) +{ + gpio_set_value(GPIO_BT_EN, GPIO_LOW); + mdelay(1); + gpio_set_value(GPIO_BT_EN, GPIO_HIGH); + mdelay(1); + gpio_set_value(GPIO_BT_EN, GPIO_LOW); + + return 0; +} + static struct ti_st_plat_data wilink_platform_data = { - .nshutdown_gpio = 46, .dev_name = "/dev/ttyO1", .flow_cntrl = 1, .baud_rate = 3000000, - .chip_enable = NULL, - .suspend = NULL, - .resume = NULL, + .chip_enable = plat_kim_chip_enable, + .chip_disable = plat_kim_chip_disable, }; +static int wilink_st_init(void) +{ + int status; + + status = gpio_request(GPIO_BT_EN, "kim"); + if (status) { + pr_err("%s: failed to request gpio %d\n", __func__, + GPIO_BT_EN); + return status; + } + + status = gpio_direction_output(GPIO_BT_EN, 0); + if (status) + pr_err("%s: unable to configure gpio %d", __func__, + GPIO_BT_EN); + + return status; +} + static struct platform_device wl1271_device = { .name = "kim", .id = -1, @@ -397,6 +436,12 @@ static struct omap_board_mux board_mux[] __initdata = { OMAP_PULL_ENA), OMAP4_MUX(ABE_MCBSP1_FSX, OMAP_MUX_MODE0 | OMAP_PIN_INPUT), + /* UART2 - BT/FM/GPS shared transport */ + OMAP4_MUX(UART2_CTS, OMAP_PIN_INPUT | OMAP_MUX_MODE0), + OMAP4_MUX(UART2_RTS, OMAP_PIN_OUTPUT | OMAP_MUX_MODE0), + OMAP4_MUX(UART2_RX, OMAP_PIN_INPUT | OMAP_MUX_MODE0), + OMAP4_MUX(UART2_TX, OMAP_PIN_OUTPUT | OMAP_MUX_MODE0), + { .reg_offset = OMAP_MUX_TERMINATOR }, }; @@ -433,6 +478,10 @@ static void __init omap4_panda_init(void) if (ret) pr_err("error setting wl12xx data: %d\n", ret); + ret = wilink_st_init(); + if (ret) + pr_err("WiLink shared transport init failed: %d\n", ret); + omap4_panda_init_rev(); omap4_panda_i2c_init(); platform_add_devices(panda_devices, ARRAY_SIZE(panda_devices));