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Re: [PATCH 0/3] serial: samsung: Fix UART status handling and other fixes

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On 08.09.2015 18:38, Robert Baldyga wrote:
> Hello,
> 
> This patch set contains three patches: two minor fixes and one quite
> important bugfix enabling UART status handling in DMA mode, which was
> missing so far. It enables, among others, 'break' contition handling,
> which is necessary if we want to use Magic SysRq. So this patch fixes
> Magic SysRq handling for serial consoles using UART in DMA mode,

Is it even worth using UART for serial console in DMA mode? How many
benefits it brings? Anyone measured real data?

The patch which enabled DMA for all serial ports on Exynos4 uncovered
some issues. That is one benefit... but was it worth it?

Best regards,
Krzysztof

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[PATCH 0/3] serial: samsung: Fix UART status handling and other fixes Robert Baldyga <r.baldyga@samsung.com> - 2015-09-08 11:40 +0200
  [PATCH 1/3] serial: samsung: remove unused 'irq' parameter Robert Baldyga <r.baldyga@samsung.com> - 2015-09-08 11:40 +0200
    Re: [PATCH 1/3] serial: samsung: remove unused 'irq' parameter Krzysztof Kozlowski <k.kozlowski@samsung.com> - 2015-09-10 02:30 +0200
  [PATCH 3/3] serial: samsung: Fix UART status handling in DMA mode Robert Baldyga <r.baldyga@samsung.com> - 2015-09-08 11:40 +0200
    Re: [PATCH 3/3] serial: samsung: Fix UART status handling in DMA mode Krzysztof Kozlowski <k.kozlowski@samsung.com> - 2015-09-10 02:50 +0200
      Re: [PATCH 3/3] serial: samsung: Fix UART status handling in DMA mode Robert Baldyga <r.baldyga@samsung.com> - 2015-09-10 12:50 +0200
  [PATCH 2/3] serial: samsung: remove unneded 'ignore_char' label Robert Baldyga <r.baldyga@samsung.com> - 2015-09-08 11:50 +0200
    Re: [PATCH 2/3] serial: samsung: remove unneded 'ignore_char' label Krzysztof Kozlowski <k.kozlowski@samsung.com> - 2015-09-10 02:30 +0200
      Re: [PATCH 2/3] serial: samsung: remove unneded 'ignore_char' label Robert Baldyga <r.baldyga@samsung.com> - 2015-09-10 12:40 +0200
  Re: [PATCH 0/3] serial: samsung: Fix UART status handling and other  fixes Krzysztof Kozlowski <k.kozlowski@samsung.com> - 2015-09-09 01:50 +0200
    Re: [PATCH 0/3] serial: samsung: Fix UART status handling and other  fixes Robert Baldyga <r.baldyga@samsung.com> - 2015-09-09 11:20 +0200
      Re: [PATCH 0/3] serial: samsung: Fix UART status handling and other  fixes Krzysztof Kozlowski <k.kozlowski@samsung.com> - 2015-09-10 02:30 +0200

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