linux-toradex.git/arch/arm/mach-omap2, branch v3.0.40

ARM: OMAP2+: OPP: Fix to ensure check of right oppdef after bad one

2012-08-09T15:27:35+00:00

commit b110547e586eb5825bc1d04aa9147bff83b57672 upstream.

Commit 9fa2df6b90786301b175e264f5fa9846aba81a65
(ARM: OMAP2+: OPP: allow OPP enumeration to continue if device is not present)
makes the logic:
for (i = 0; i < opp_def_size; i++) {
	
	if (!oh || !oh->od) {
		
		continue;
	}

opp_def++;
}

In short, the moment we hit a "Bad OPP", we end up looping the list
comparing against the bad opp definition pointer for the rest of the
iteration count. Instead, increment opp_def in the for loop itself
and allow continue to be used in code without much thought so that
we check the next set of OPP definition pointers :)

Cc: Steve Sakoman 
Cc: Tony Lindgren 
Signed-off-by: Nishanth Menon 
Signed-off-by: Kevin Hilman 
Signed-off-by: Greg Kroah-Hartman

OMAPDSS: HDMI: PHY burnout fix

2012-03-12T17:32:59+00:00

commit c49d005b6cc8491fad5b24f82805be2d6bcbd3dd upstream.

A hardware bug in the OMAP4 HDMI PHY causes physical damage to the board
if the HDMI PHY is kept powered on when the cable is not connected.

This patch solves the problem by adding hot-plug-detection into the HDMI
IP driver. This is not a real HPD support in the sense that nobody else
than the IP driver gets to know about the HPD events, but is only meant
to fix the HW bug.

The strategy is simple: If the display device is turned off by the user,
the PHY power is set to OFF. When the display device is turned on by the
user, the PHY power is set either to LDOON or TXON, depending on whether
the HDMI cable is connected.

The reason to avoid PHY OFF when the display device is on, but the cable
is disconnected, is that when the PHY is turned OFF, the HDMI IP is not
"ticking" and thus the DISPC does not receive pixel clock from the HDMI
IP. This would, for example, prevent any VSYNCs from happening, and
would thus affect the users of omapdss. By using LDOON when the cable is
disconnected we'll avoid the HW bug, but keep the HDMI working as usual
from the user's point of view.

Signed-off-by: Tomi Valkeinen 
Signed-off-by: Greg Kroah-Hartman

OMAP: 4430SDP/Panda: add HDMI HPD gpio

2012-03-12T17:32:59+00:00

commit aa74274b464d4aa24703963ac89a0ee942d5d267 upstream.

Both Panda and 4430SDP use GPIO 63 as HDMI hot-plug-detect. Configure
this GPIO in the board files.

Signed-off-by: Tomi Valkeinen 
Acked-by: Tony Lindgren 
Signed-off-by: Greg Kroah-Hartman

OMAP: 4430SDP/Panda: setup HDMI GPIO muxes

2012-03-12T17:32:59+00:00

commit 78a1ad8f12db70b8b0a4548b90704de08ee216ce upstream.

The HDMI GPIO pins LS_OE and CT_CP_HPD are not currently configured.
This patch configures them as output pins.

Signed-off-by: Tomi Valkeinen 
Acked-by: Tony Lindgren 
Signed-off-by: Greg Kroah-Hartman

OMAPDSS: remove wrong HDMI HPD muxing

2012-03-12T17:32:59+00:00

commit 7bb122d155f742fe2d79849090c825be7b4a247e upstream.

"hdmi_hpd" pin is muxed to INPUT and PULLUP, but the pin is not
currently used, and in the future when it is used, the pin is used as a
GPIO and is board specific, not an OMAP4 wide thing.

So remove the muxing for now.

Signed-off-by: Tomi Valkeinen 
Acked-by: Tony Lindgren 
Signed-off-by: Greg Kroah-Hartman

OMAP: 4430SDP/Panda: rename HPD GPIO to CT_CP_HPD

2012-03-12T17:32:59+00:00

commit 3932a32fcf5393f8be70ac99dc718ad7ad0a415b upstream.

The GPIO 60 on 4430sdp and Panda is not HPD GPIO, as currently marked in
the board files, but CT_CP_HPD, which is used to enable/disable HPD
functionality.

This patch renames the GPIO.

Signed-off-by: Tomi Valkeinen 
Acked-by: Tony Lindgren 
Signed-off-by: Greg Kroah-Hartman

OMAP: 4430SDP/Panda: use gpio_free_array to free HDMI gpios

2012-03-12T17:32:59+00:00

commit 575753e3bea3b67eef8e454fb87f719e3f7da599 upstream.

Instead of freeing the GPIOs individually, use gpio_free_array().

Signed-off-by: Tomi Valkeinen 
Acked-by: Tony Lindgren 
Signed-off-by: Greg Kroah-Hartman

OMAP: DSS2: HDMI: use default dividers

2012-03-12T17:32:58+00:00

commit 8d88767a4377171752c22ac39bcb2b505eb751da upstream.

Use default regn and regm2 dividers in the hdmi driver if the board file
does not define them.

Cc: Mythri P K 
Acked-by: Tony Lindgren 
Signed-off-by: Tomi Valkeinen 
Signed-off-by: Greg Kroah-Hartman

ARM: OMAP2+: GPMC: fix device size setup

2012-02-13T19:06:05+00:00

commit 8ef5d844cc3a644ea6f7665932a4307e9fad01fa upstream.

following statement can only change device size from 8-bit(0) to 16-bit(1),
but not vice versa:

regval |= GPMC_CONFIG1_DEVICESIZE(wval);

so as this field has 1 reserved bit, that could be used in future,
just clear both bits and then OR with the desired value

Signed-off-by: Yegor Yefremov 
Signed-off-by: Tony Lindgren 
Signed-off-by: Greg Kroah-Hartman

ARM: OMAP: rx51: fix USB

2012-01-06T22:13:44+00:00

commit e5fe29c7198a1f6616286dfc8602a69da165cb3f upstream.

Commit 10299e2e4e3ed3b16503d4e04edd48b33083f4e2 (ARM: RX-51:
Enable isp1704 power on/off) added power management for isp1704.

However, the transceiver should be powered on by default,
otherwise USB doesn't work at all for networking during
boot.

All kernels after v3.0 are affected.

Signed-off-by: Felipe Contreras 
Reviewed-by: Sebastian Reichel 
[tony@atomide.com: updated comments]
Signed-off-by: Tony Lindgren 
Signed-off-by: Greg Kroah-Hartman