linux-kernel - [PATCH v7 0/4] arm: Fix DEBUG_LL for multi-platform kernels (without PL01X)

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Date:	Mon, 30 Jun 2014 12:30:51 +0100
From:	Daniel Thompson <daniel.thompson@...aro.org>
To:	Russell King <linux@....linux.org.uk>
Cc:	Daniel Thompson <daniel.thompson@...aro.org>,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	spear-devel@...t.st.com, Arnd Bergmann <arnd@...db.de>,
	Paul Bolle <pebolle@...cali.nl>, patches@...aro.org,
	linaro-kernel@...ts.linaro.org
Subject: [PATCH v7 0/4] arm: Fix DEBUG_LL for multi-platform kernels (without PL01X)

This patchset removes some single-platform compatibility tricks related
to DEBUG_LL and, as a result, allows multi_v7_defconfig derived builds
to enable DEBUG_LL. Currently the user selected kbuild setting is
ignored and the PL01X's DEBUG_LL stub is silently selected instead. This
is a pain if your hardware doesn't have this cell, not least because it
takes a little time to figure out that kbuild built the wrong code.

Changes since v6:
- Removed a patch to limit DEBUG_LL_UART_NONE to platforms that support
  it because it almost time to drop DEBUG_LL_UART_NONE anyway (only
  four platforms still use it).
- Rebased on latest mainline (v3.16rc3).

Changes since v5:

- Shortened the list of platforms that can select DEBUG_LL_UART_NONE
  (changes Arnd Bergmann)
- Rebased on latest mainline (v3.15rc7).

Changes since v4:

- Rebased to latest mainline (and tested again). No functional changes.

Changes since v3:

- Converted from a single patch to a series.
- Tested defconfig builds of all impacted platforms.

Changes since v2:

- Switch from def_bool to bool (thanks Russell King)

Changes since v1:

- Remove pointless single platform support (thanks Arnd Bergmann)

Daniel Thompson (4):
  ARM: versatile: Enable DEBUG_LL_UART_PL01X
  ARM: ep93xx: Enable DEBUG_LL_UART_PL01X
  arm: Seperate DEBUG_UART_PHYS from DEBUG_LL on EP93XX
  arm: Fix DEBUG_LL for multi-platform kernels (without PL01X)

 arch/arm/Kconfig.debug               | 10 +++-------
 arch/arm/configs/ep93xx_defconfig    |  1 +
 arch/arm/configs/versatile_defconfig |  1 +
 3 files changed, 5 insertions(+), 7 deletions(-)

--
1.9.3

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