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| author | Chen-Yu Tsai <wens@csie.org> | 2017-04-21 16:38:50 +0800 |
|---|---|---|
| committer | Maxime Ripard <maxime.ripard@free-electrons.com> | 2017-05-14 08:27:41 +0200 |
| commit | 80a58240efef576ef909f7d99180ae2a70ca68a5 (patch) | |
| tree | 579be060ea896da911715c4e583b5a465181f3c4 /drivers/gpu/drm/sun4i/sun4i_backend.c | |
| parent | de120d092eeb69b5285586a9fd33b1778ce9ee27 (diff) | |
| download | op-kernel-dev-80a58240efef576ef909f7d99180ae2a70ca68a5.zip op-kernel-dev-80a58240efef576ef909f7d99180ae2a70ca68a5.tar.gz | |
drm/sun4i: Use lists to track registered display backends and TCONs
To support multiple display pipelines, we need to keep track of the
multiple display backends and TCONs registered with the driver.
Switch to lists to track registered components. Components are only
appended to their respective lists if the bind process was successful.
The TCON bind function now defers if a backend was not registered.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Diffstat (limited to 'drivers/gpu/drm/sun4i/sun4i_backend.c')
| -rw-r--r-- | drivers/gpu/drm/sun4i/sun4i_backend.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/gpu/drm/sun4i/sun4i_backend.c b/drivers/gpu/drm/sun4i/sun4i_backend.c index d660741..95a77c6 100644 --- a/drivers/gpu/drm/sun4i/sun4i_backend.c +++ b/drivers/gpu/drm/sun4i/sun4i_backend.c @@ -19,6 +19,7 @@ #include <drm/drm_plane_helper.h> #include <linux/component.h> +#include <linux/list.h> #include <linux/reset.h> #include "sun4i_backend.h" @@ -310,7 +311,6 @@ static int sun4i_backend_bind(struct device *dev, struct device *master, if (!backend) return -ENOMEM; dev_set_drvdata(dev, backend); - drv->backend = backend; res = platform_get_resource(pdev, IORESOURCE_MEM, 0); regs = devm_ioremap_resource(dev, res); @@ -369,6 +369,8 @@ static int sun4i_backend_bind(struct device *dev, struct device *master, } } + list_add_tail(&backend->list, &drv->backend_list); + /* Reset the registers */ for (i = 0x800; i < 0x1000; i += 4) regmap_write(backend->regs, i, 0); @@ -400,6 +402,8 @@ static void sun4i_backend_unbind(struct device *dev, struct device *master, { struct sun4i_backend *backend = dev_get_drvdata(dev); + list_del(&backend->list); + if (of_device_is_compatible(dev->of_node, "allwinner,sun8i-a33-display-backend")) sun4i_backend_free_sat(dev); |
