[v4,10/11] OMAP4: DSS2: HDMI: Function pointer approach to call

Message ID	1315313784-28478-1-git-send-email-mythripk@ti.com (mailing list archive)
State	New, archived
Headers	show Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter2.kernel.org (8.14.4/8.14.4) with ESMTP id p86D4Y1H025887 for <patchwork-omap@patchwork.kernel.org>; Tue, 6 Sep 2011 13:04:35 GMT From: <mythripk@ti.com> To: <tomi.valkeinen@ti.com>, <linux-omap@vger.kernel.org> CC: Mythri P K <mythripk@ti.com> Subject: [PATCH v4 10/11] OMAP4: DSS2: HDMI: Function pointer approach to call Date: Tue, 6 Sep 2011 18:26:24 +0530 Message-ID: <1315313784-28478-1-git-send-email-mythripk@ti.com> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-omap-owner@vger.kernel.org Precedence: bulk

different IP blocks( A combination of different core, PHY, PLL blocks), Add HDMI hdmi functions as a function pointer in dss_features to abstract hdmi dss driver IP agnostic, hdmi dss driver which will now access generic functions irrespective of underlying IP. Signed-off-by: Mythri P K <mythripk@ti.com> --- drivers/video/omap2/dss/dss_features.c | 20 ++++++++++++++++++++ drivers/video/omap2/dss/dss_features.h | 7 +++++++ drivers/video/omap2/dss/hdmi.c | 19 ++++++++++--------- include/video/ti_hdmi.h | 21 +++++++++++++++++++++ 4 files changed, 58 insertions(+), 9 deletions(-) diff --git a/drivers/video/omap2/dss/dss_features.c b/drivers/video/omap2/dss/dss_features.c index b63c5f8..8670612 100644 --- a/drivers/video/omap2/dss/dss_features.c +++ b/drivers/video/omap2/dss/dss_features.c @@ -429,6 +429,26 @@ static const struct omap_dss_features omap4_dss_features = { .burst_size_unit = 16, }; +#if defined(CONFIG_OMAP4_DSS_HDMI) +/* HDMI OMAP4 Functions*/ +static const struct ti_hdmi_ip_ops omap4_hdmi_functions = { + + .video_configure = ti_hdmi_4xxx_basic_configure, + .phy_enable = ti_hdmi_4xxx_phy_enable, + .phy_disable = ti_hdmi_4xxx_phy_disable, + .read_edid = ti_hdmi_4xxx_read_edid, + .pll_enable = ti_hdmi_4xxx_pll_enable, + .pll_disable = ti_hdmi_4xxx_pll_disable, + .video_enable = ti_hdmi_4xxx_wp_video_start, +}; + +void dss_init_hdmi_ip_ops(struct hdmi_ip_data *ip_data) +{ + if (cpu_is_omap44xx()) + ip_data->ops = &omap4_hdmi_functions; +} +#endif + /* Functions returning values related to a DSS feature */ int dss_feat_get_num_mgrs(void) { diff --git a/drivers/video/omap2/dss/dss_features.h b/drivers/video/omap2/dss/dss_features.h index 4271e96..e89ae5f 100644 --- a/drivers/video/omap2/dss/dss_features.h +++ b/drivers/video/omap2/dss/dss_features.h @@ -20,6 +20,10 @@ #ifndef __OMAP2_DSS_FEATURES_H #define __OMAP2_DSS_FEATURES_H +#if defined(CONFIG_OMAP4_DSS_HDMI) +#include <video/ti_hdmi.h> +#endif + #define MAX_DSS_MANAGERS 3 #define MAX_DSS_OVERLAYS 3 #define MAX_DSS_LCD_MANAGERS 2 @@ -99,4 +103,7 @@ u32 dss_feat_get_burst_size_unit(void); /* in bytes */ bool dss_has_feature(enum dss_feat_id id); void dss_feat_get_reg_field(enum dss_feat_reg_field id, u8 *start, u8 *end); void dss_features_init(void); +#if defined(CONFIG_OMAP4_DSS_HDMI) +void dss_init_hdmi_ip_ops(struct hdmi_ip_data *ip_data); +#endif #endif diff --git a/drivers/video/omap2/dss/hdmi.c b/drivers/video/omap2/dss/hdmi.c index b11ac70..6284460 100644 --- a/drivers/video/omap2/dss/hdmi.c +++ b/drivers/video/omap2/dss/hdmi.c @@ -186,6 +186,7 @@ int hdmi_init_display(struct omap_dss_device *dssdev) { DSSDBG("init_display\n"); + dss_init_hdmi_ip_ops(&hdmi.ip_data); return 0; } @@ -366,7 +367,7 @@ static void hdmi_read_edid(struct omap_video_timings *dp) memset(hdmi.edid, 0, HDMI_EDID_MAX_LENGTH); if (!hdmi.edid_set) - ret = ti_hdmi_4xxx_read_edid(&hdmi.ip_data, hdmi.edid, + ret = hdmi.ip_data.ops->read_edid(&hdmi.ip_data, hdmi.edid, HDMI_EDID_MAX_LENGTH); if (!ret) { if (!memcmp(hdmi.edid, edid_header, sizeof(edid_header))) { @@ -480,16 +481,16 @@ static int hdmi_power_on(struct omap_dss_device *dssdev) hdmi_compute_pll(dssdev, phy, &hdmi.ip_data.pll_data); - ti_hdmi_4xxx_wp_video_start(&hdmi.ip_data, 0); + hdmi.ip_data.ops->video_enable(&hdmi.ip_data, 0); /* config the PLL and PHY hdmi_set_pll_pwrfirst */ - r = ti_hdmi_4xxx_pll_enable(&hdmi.ip_data); + r = hdmi.ip_data.ops->pll_enable(&hdmi.ip_data); if (r) { DSSDBG("Failed to lock PLL\n"); goto err; } - r = ti_hdmi_4xxx_phy_enable(&hdmi.ip_data); + r = hdmi.ip_data.ops->phy_enable(&hdmi.ip_data); if (r) { DSSDBG("Failed to start PHY\n"); goto err; @@ -497,7 +498,7 @@ static int hdmi_power_on(struct omap_dss_device *dssdev) hdmi.ip_data.cfg.cm.mode = hdmi.mode; hdmi.ip_data.cfg.cm.code = hdmi.code; - ti_hdmi_4xxx_basic_configure(&hdmi.ip_data); + hdmi.ip_data.ops->video_configure(&hdmi.ip_data); /* Make selection of HDMI in DSS */ dss_select_hdmi_venc_clk_source(DSS_HDMI_M_PCLK); @@ -519,7 +520,7 @@ static int hdmi_power_on(struct omap_dss_device *dssdev) dispc_mgr_enable(OMAP_DSS_CHANNEL_DIGIT, 1); - ti_hdmi_4xxx_wp_video_start(&hdmi.ip_data, 1); + hdmi.ip_data.ops->video_enable(&hdmi.ip_data, 1); return 0; err: @@ -531,9 +532,9 @@ static void hdmi_power_off(struct omap_dss_device *dssdev) { dispc_mgr_enable(OMAP_DSS_CHANNEL_DIGIT, 0); - ti_hdmi_4xxx_wp_video_start(&hdmi.ip_data, 0); - ti_hdmi_4xxx_phy_disable(&hdmi.ip_data); - ti_hdmi_4xxx_pll_disable(&hdmi.ip_data); + hdmi.ip_data.ops->video_enable(&hdmi.ip_data, 0); + hdmi.ip_data.ops->phy_disable(&hdmi.ip_data); + hdmi.ip_data.ops->pll_disable(&hdmi.ip_data); hdmi_runtime_put(); hdmi.edid_set = 0; diff --git a/include/video/ti_hdmi.h b/include/video/ti_hdmi.h index 823fbe6..acf1022 100644 --- a/include/video/ti_hdmi.h +++ b/include/video/ti_hdmi.h @@ -21,6 +21,8 @@ #ifndef _TI_HDMI_H #define _TI_HDMI_H +struct hdmi_ip_data; + enum hdmi_pll_pwr { HDMI_PLLPWRCMD_ALLOFF = 0, HDMI_PLLPWRCMD_PLLONLY = 1, @@ -82,12 +84,31 @@ struct hdmi_pll_info { enum hdmi_clk_refsel refsel; }; +struct ti_hdmi_ip_ops { + + void (*video_configure)(struct hdmi_ip_data *ip_data); + + int (*phy_enable)(struct hdmi_ip_data *ip_data); + + void (*phy_disable)(struct hdmi_ip_data *ip_data); + + int (*read_edid)(struct hdmi_ip_data *ip_data, + u8 *pedid, u16 max_length); + + int (*pll_enable)(struct hdmi_ip_data *ip_data); + + void (*pll_disable)(struct hdmi_ip_data *ip_data); + + void (*video_enable)(struct hdmi_ip_data *ip_data, bool start); +}; + struct hdmi_ip_data { void __iomem *base_wp; /* HDMI wrapper */ unsigned long core_sys_offset; unsigned long core_av_offset; unsigned long pll_offset; unsigned long phy_offset; + const struct ti_hdmi_ip_ops *ops; struct hdmi_config cfg; struct hdmi_pll_info pll_data; };

[v4,10/11] OMAP4: DSS2: HDMI: Function pointer approach to call

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